From bffc20aa863f38f97cd5a5798c4b86ffe84b75f4 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 19 Aug 2026 16:56:19 +0200
Subject: chore: normalize header guards

---
 kapi/kapi/devices/device.hpp                             | 4 ++--
 kernel/kernel/devices/block_device_utils.hpp             | 4 ++--
 kernel/kernel/devices/storage.hpp                        | 4 ++--
 kernel/kernel/drivers/storage/ram_disk.hpp               | 4 ++--
 kernel/kernel/filesystem/constants.hpp                   | 4 ++--
 kernel/kernel/filesystem/dentry.hpp                      | 4 ++--
 kernel/kernel/filesystem/devfs/filesystem.hpp            | 4 ++--
 kernel/kernel/filesystem/devfs/inode.hpp                 | 4 ++--
 kernel/kernel/filesystem/device_inode.hpp                | 4 ++--
 kernel/kernel/filesystem/ext2/block_group_descriptor.hpp | 4 ++--
 kernel/kernel/filesystem/ext2/filesystem.hpp             | 4 ++--
 kernel/kernel/filesystem/ext2/inode.hpp                  | 4 ++--
 kernel/kernel/filesystem/ext2/linked_directory_entry.hpp | 4 ++--
 kernel/kernel/filesystem/ext2/superblock.hpp             | 4 ++--
 kernel/kernel/filesystem/file_type.hpp                   | 4 ++--
 kernel/kernel/filesystem/filesystem.hpp                  | 4 ++--
 kernel/kernel/filesystem/inode.hpp                       | 4 ++--
 kernel/kernel/filesystem/mount.hpp                       | 4 ++--
 kernel/kernel/filesystem/mount_table.hpp                 | 4 ++--
 kernel/kernel/filesystem/open_file_descriptor.hpp        | 4 ++--
 kernel/kernel/filesystem/open_file_table.hpp             | 4 ++--
 kernel/kernel/filesystem/path.hpp                        | 6 +++---
 kernel/kernel/filesystem/rootfs/filesystem.hpp           | 4 ++--
 kernel/kernel/filesystem/rootfs/inode.hpp                | 4 ++--
 kernel/kernel/filesystem/type.hpp                        | 4 ++--
 kernel/kernel/filesystem/type_registry.hpp               | 4 ++--
 kernel/kernel/filesystem/vfs.hpp                         | 4 ++--
 kernel/kernel/filesystem/vfs_types.hpp                   | 4 ++--
 28 files changed, 57 insertions(+), 57 deletions(-)

diff --git a/kapi/kapi/devices/device.hpp b/kapi/kapi/devices/device.hpp
index bb7eb9da..86566bff 100644
--- a/kapi/kapi/devices/device.hpp
+++ b/kapi/kapi/devices/device.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KAPI_DEVICES_DEVICE_HPP
-#define TEACH_OS_KAPI_DEVICES_DEVICE_HPP
+#ifndef TEACHOS_KAPI_DEVICES_DEVICE_HPP
+#define TEACHOS_KAPI_DEVICES_DEVICE_HPP
 
 // IWYU pragma: private, include <kapi/devices.hpp>
 
diff --git a/kernel/kernel/devices/block_device_utils.hpp b/kernel/kernel/devices/block_device_utils.hpp
index c99adf67..03fee8cc 100644
--- a/kernel/kernel/devices/block_device_utils.hpp
+++ b/kernel/kernel/devices/block_device_utils.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_DEVICES_BLOCK_DEVICE_UTILS_HPP
-#define TEACH_OS_KERNEL_DEVICES_BLOCK_DEVICE_UTILS_HPP
+#ifndef TEACHOS_KERNEL_DEVICES_BLOCK_DEVICE_UTILS_HPP
+#define TEACHOS_KERNEL_DEVICES_BLOCK_DEVICE_UTILS_HPP
 
 #include <kapi/filesystem.hpp>
 
diff --git a/kernel/kernel/devices/storage.hpp b/kernel/kernel/devices/storage.hpp
index bbbe8e6f..acaa8a4c 100644
--- a/kernel/kernel/devices/storage.hpp
+++ b/kernel/kernel/devices/storage.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_DEVICES_STORAGE_HPP
-#define TEACH_OS_KERNEL_DEVICES_STORAGE_HPP
+#ifndef TEACHOS_KERNEL_DEVICES_STORAGE_HPP
+#define TEACHOS_KERNEL_DEVICES_STORAGE_HPP
 
 #include <kapi/devices/device.hpp>
 
diff --git a/kernel/kernel/drivers/storage/ram_disk.hpp b/kernel/kernel/drivers/storage/ram_disk.hpp
index 45c5bbc2..a526435b 100644
--- a/kernel/kernel/drivers/storage/ram_disk.hpp
+++ b/kernel/kernel/drivers/storage/ram_disk.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_DRIVERS_STORAGE_RAM_DISK_HPP
-#define TEACH_OS_KERNEL_DRIVERS_STORAGE_RAM_DISK_HPP
+#ifndef TEACHOS_KERNEL_DRIVERS_STORAGE_RAM_DISK_HPP
+#define TEACHOS_KERNEL_DRIVERS_STORAGE_RAM_DISK_HPP
 
 #include <kapi/boot_modules.hpp>
 #include <kapi/capabilities/facet_id.hpp>
diff --git a/kernel/kernel/filesystem/constants.hpp b/kernel/kernel/filesystem/constants.hpp
index cebbf530..09996467 100644
--- a/kernel/kernel/filesystem/constants.hpp
+++ b/kernel/kernel/filesystem/constants.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_CONSTANTS_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_CONSTANTS_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_CONSTANTS_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_CONSTANTS_HPP
 
 #include <cstddef>
 
diff --git a/kernel/kernel/filesystem/dentry.hpp b/kernel/kernel/filesystem/dentry.hpp
index 30d8c4f9..a33ff22d 100644
--- a/kernel/kernel/filesystem/dentry.hpp
+++ b/kernel/kernel/filesystem/dentry.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_DENTRY_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_DENTRY_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_DENTRY_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_DENTRY_HPP
 
 #include <kernel/filesystem/inode.hpp>
 
diff --git a/kernel/kernel/filesystem/devfs/filesystem.hpp b/kernel/kernel/filesystem/devfs/filesystem.hpp
index 986dc27f..3a4e7ec6 100644
--- a/kernel/kernel/filesystem/devfs/filesystem.hpp
+++ b/kernel/kernel/filesystem/devfs/filesystem.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVFS_FILESYSTEM_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_DEVFS_FILESYSTEM_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_DEVFS_FILESYSTEM_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_DEVFS_FILESYSTEM_HPP
 
 #include <kernel/filesystem/device_inode.hpp>
 #include <kernel/filesystem/device_number_registry.hpp>
diff --git a/kernel/kernel/filesystem/devfs/inode.hpp b/kernel/kernel/filesystem/devfs/inode.hpp
index 4dbd8bae..d2f5291e 100644
--- a/kernel/kernel/filesystem/devfs/inode.hpp
+++ b/kernel/kernel/filesystem/devfs/inode.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVFS_INODE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_DEVFS_INODE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_DEVFS_INODE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_DEVFS_INODE_HPP
 
 #include <kernel/filesystem/inode.hpp>
 
diff --git a/kernel/kernel/filesystem/device_inode.hpp b/kernel/kernel/filesystem/device_inode.hpp
index 6e81a577..5c26266e 100644
--- a/kernel/kernel/filesystem/device_inode.hpp
+++ b/kernel/kernel/filesystem/device_inode.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_DEVICE_INODE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_DEVICE_INODE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_DEVICE_INODE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_DEVICE_INODE_HPP
 
 #include <kernel/filesystem/inode.hpp>
 
diff --git a/kernel/kernel/filesystem/ext2/block_group_descriptor.hpp b/kernel/kernel/filesystem/ext2/block_group_descriptor.hpp
index 7fbba3f3..f7a7ce9e 100644
--- a/kernel/kernel/filesystem/ext2/block_group_descriptor.hpp
+++ b/kernel/kernel/filesystem/ext2/block_group_descriptor.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_EXT2_BLOCK_GROUP_DESCRIPTOR_HPP
 
 #include <array>
 #include <cstdint>
diff --git a/kernel/kernel/filesystem/ext2/filesystem.hpp b/kernel/kernel/filesystem/ext2/filesystem.hpp
index 7124553d..c61eadd1 100644
--- a/kernel/kernel/filesystem/ext2/filesystem.hpp
+++ b/kernel/kernel/filesystem/ext2/filesystem.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_EXT2_FILESYSTEM_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_EXT2_FILESYSTEM_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_EXT2_FILESYSTEM_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_EXT2_FILESYSTEM_HPP
 
 #include <kernel/filesystem/ext2/block_group_descriptor.hpp>
 #include <kernel/filesystem/ext2/inode.hpp>
diff --git a/kernel/kernel/filesystem/ext2/inode.hpp b/kernel/kernel/filesystem/ext2/inode.hpp
index 88596e3c..51508c0d 100644
--- a/kernel/kernel/filesystem/ext2/inode.hpp
+++ b/kernel/kernel/filesystem/ext2/inode.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_EXT2_INODE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_EXT2_INODE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_EXT2_INODE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_EXT2_INODE_HPP
 
 #include <kernel/filesystem/inode.hpp>
 
diff --git a/kernel/kernel/filesystem/ext2/linked_directory_entry.hpp b/kernel/kernel/filesystem/ext2/linked_directory_entry.hpp
index 4097cbb8..2dfa507d 100644
--- a/kernel/kernel/filesystem/ext2/linked_directory_entry.hpp
+++ b/kernel/kernel/filesystem/ext2/linked_directory_entry.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_EXT2_LINKED_DIRECTORY_ENTRY_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_EXT2_LINKED_DIRECTORY_ENTRY_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_EXT2_LINKED_DIRECTORY_ENTRY_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_EXT2_LINKED_DIRECTORY_ENTRY_HPP
 
 #include <array>
 #include <cstdint>
diff --git a/kernel/kernel/filesystem/ext2/superblock.hpp b/kernel/kernel/filesystem/ext2/superblock.hpp
index 41ad9358..73fd4b5e 100644
--- a/kernel/kernel/filesystem/ext2/superblock.hpp
+++ b/kernel/kernel/filesystem/ext2/superblock.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_EXT2_SUPERBLOCK_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_EXT2_SUPERBLOCK_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_EXT2_SUPERBLOCK_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_EXT2_SUPERBLOCK_HPP
 
 #include <array>
 #include <cstdint>
diff --git a/kernel/kernel/filesystem/file_type.hpp b/kernel/kernel/filesystem/file_type.hpp
index b4c3f914..71370ea6 100644
--- a/kernel/kernel/filesystem/file_type.hpp
+++ b/kernel/kernel/filesystem/file_type.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACHOS_KERNEL_FILESYSTEM_POSIX_FILE_TYPE_HPP
-#define TEACHOS_KERNEL_FILESYSTEM_POSIX_FILE_TYPE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_FILE_TYPE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_FILE_TYPE_HPP
 
 namespace kernel::filesystem
 {
diff --git a/kernel/kernel/filesystem/filesystem.hpp b/kernel/kernel/filesystem/filesystem.hpp
index c8381adb..b5017c24 100644
--- a/kernel/kernel/filesystem/filesystem.hpp
+++ b/kernel/kernel/filesystem/filesystem.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_FILESYSTEM_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_FILESYSTEM_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_FILESYSTEM_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_FILESYSTEM_HPP
 
 #include <kernel/filesystem/inode.hpp>
 #include <kernel/filesystem/vfs_types.hpp>
diff --git a/kernel/kernel/filesystem/inode.hpp b/kernel/kernel/filesystem/inode.hpp
index 12be39b4..afe15e7d 100644
--- a/kernel/kernel/filesystem/inode.hpp
+++ b/kernel/kernel/filesystem/inode.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_INODE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_INODE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_INODE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_INODE_HPP
 
 #include <kapi/filesystem.hpp>
 
diff --git a/kernel/kernel/filesystem/mount.hpp b/kernel/kernel/filesystem/mount.hpp
index 589094e0..aff43c78 100644
--- a/kernel/kernel/filesystem/mount.hpp
+++ b/kernel/kernel/filesystem/mount.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_MOUNT_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_MOUNT_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_MOUNT_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_MOUNT_HPP
 
 #include <kernel/filesystem/dentry.hpp>
 #include <kernel/filesystem/filesystem.hpp>
diff --git a/kernel/kernel/filesystem/mount_table.hpp b/kernel/kernel/filesystem/mount_table.hpp
index 46e2a439..f1c2050d 100644
--- a/kernel/kernel/filesystem/mount_table.hpp
+++ b/kernel/kernel/filesystem/mount_table.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_MOUNT_TABLE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_MOUNT_TABLE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_MOUNT_TABLE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_MOUNT_TABLE_HPP
 
 #include <kernel/filesystem/mount.hpp>
 
diff --git a/kernel/kernel/filesystem/open_file_descriptor.hpp b/kernel/kernel/filesystem/open_file_descriptor.hpp
index a9d043bf..a39dbab8 100644
--- a/kernel/kernel/filesystem/open_file_descriptor.hpp
+++ b/kernel/kernel/filesystem/open_file_descriptor.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_OPEN_FILE_DESCRIPTOR_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_OPEN_FILE_DESCRIPTOR_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_OPEN_FILE_DESCRIPTOR_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_OPEN_FILE_DESCRIPTOR_HPP
 
 #include <kernel/filesystem/dentry.hpp>
 
diff --git a/kernel/kernel/filesystem/open_file_table.hpp b/kernel/kernel/filesystem/open_file_table.hpp
index 7c9a0c0c..fe42c2bb 100644
--- a/kernel/kernel/filesystem/open_file_table.hpp
+++ b/kernel/kernel/filesystem/open_file_table.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_OPEN_FILE_TABLE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_OPEN_FILE_TABLE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_OPEN_FILE_TABLE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_OPEN_FILE_TABLE_HPP
 
 #include <kernel/filesystem/open_file_descriptor.hpp>
 
diff --git a/kernel/kernel/filesystem/path.hpp b/kernel/kernel/filesystem/path.hpp
index a0dbd1f1..a9d4cbd9 100644
--- a/kernel/kernel/filesystem/path.hpp
+++ b/kernel/kernel/filesystem/path.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_PATH_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_PATH_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_PATH_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_PATH_HPP
 
 #include <kernel/filesystem/constants.hpp>
 
@@ -103,4 +103,4 @@ namespace kernel::filesystem::path
 
 }  // namespace kernel::filesystem::path
 
-#endif  // TEACH_OS_KERNEL_FILESYSTEM_PATH_HPP
\ No newline at end of file
+#endif  // TEACHOS_KERNEL_FILESYSTEM_PATH_HPP
\ No newline at end of file
diff --git a/kernel/kernel/filesystem/rootfs/filesystem.hpp b/kernel/kernel/filesystem/rootfs/filesystem.hpp
index 254a8a57..75fce634 100644
--- a/kernel/kernel/filesystem/rootfs/filesystem.hpp
+++ b/kernel/kernel/filesystem/rootfs/filesystem.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_ROOTFS_FILESYSTEM_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_ROOTFS_FILESYSTEM_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_ROOTFS_FILESYSTEM_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_ROOTFS_FILESYSTEM_HPP
 
 #include <kernel/filesystem/filesystem.hpp>
 #include <kernel/filesystem/inode.hpp>
diff --git a/kernel/kernel/filesystem/rootfs/inode.hpp b/kernel/kernel/filesystem/rootfs/inode.hpp
index 82df2f1a..e9e85d7d 100644
--- a/kernel/kernel/filesystem/rootfs/inode.hpp
+++ b/kernel/kernel/filesystem/rootfs/inode.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_ROOTFS_INODE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_ROOTFS_INODE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_ROOTFS_INODE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_ROOTFS_INODE_HPP
 
 #include <kernel/filesystem/inode.hpp>
 
diff --git a/kernel/kernel/filesystem/type.hpp b/kernel/kernel/filesystem/type.hpp
index ebf43176..09a08e41 100644
--- a/kernel/kernel/filesystem/type.hpp
+++ b/kernel/kernel/filesystem/type.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_TYPE_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_TYPE_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_TYPE_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_TYPE_HPP
 
 #include <kernel/filesystem/filesystem.hpp>
 
diff --git a/kernel/kernel/filesystem/type_registry.hpp b/kernel/kernel/filesystem/type_registry.hpp
index bda2326b..ed08b713 100644
--- a/kernel/kernel/filesystem/type_registry.hpp
+++ b/kernel/kernel/filesystem/type_registry.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_TYPE_REGISRY_HPP
-#define TEACH_OS_KERNEL_TYPE_REGISRY_HPP
+#ifndef TEACHOS_KERNEL_TYPE_REGISTRY_HPP
+#define TEACHOS_KERNEL_TYPE_REGISTRY_HPP
 
 #include <kernel/filesystem/type.hpp>
 
diff --git a/kernel/kernel/filesystem/vfs.hpp b/kernel/kernel/filesystem/vfs.hpp
index 1b8cf89a..b2b7e3a8 100644
--- a/kernel/kernel/filesystem/vfs.hpp
+++ b/kernel/kernel/filesystem/vfs.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_VFS_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_VFS_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_VFS_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_VFS_HPP
 
 #include <kernel/filesystem/dentry.hpp>
 #include <kernel/filesystem/devfs/filesystem.hpp>
diff --git a/kernel/kernel/filesystem/vfs_types.hpp b/kernel/kernel/filesystem/vfs_types.hpp
index 8e3dcd88..b68e3e33 100644
--- a/kernel/kernel/filesystem/vfs_types.hpp
+++ b/kernel/kernel/filesystem/vfs_types.hpp
@@ -1,5 +1,5 @@
-#ifndef TEACH_OS_KERNEL_FILESYSTEM_VFS_TYPES_HPP
-#define TEACH_OS_KERNEL_FILESYSTEM_VFS_TYPES_HPP
+#ifndef TEACHOS_KERNEL_FILESYSTEM_VFS_TYPES_HPP
+#define TEACHOS_KERNEL_FILESYSTEM_VFS_TYPES_HPP
 
 #include <cstddef>
 
-- 
cgit v1.2.3