1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/kapi/filesystem.tests.cpp b/kernel/kapi/filesystem.tests.cpp
index 8a532bb..1d1f8ee 100644
--- a/kernel/kapi/filesystem.tests.cpp
+++ b/kernel/kapi/filesystem.tests.cpp
@@ -161,14 +161,16 @@ SCENARIO_METHOD(kernel::tests::filesystem::storage_boot_module_vfs_fixture, "Kap
     THEN("not opened files cannot be read from")
     {
       std::vector<std::byte> buffer(10);
-      auto bytes_read = kapi::filesystem::read(999, buffer.data(), buffer.size());
+      auto const invalid_fd = 999uz;
+      auto bytes_read = kapi::filesystem::read(invalid_fd, buffer.data(), buffer.size());
       REQUIRE(bytes_read < 0);
     }
 
     THEN("not opened files cannot be written to")
     {
       std::vector<std::byte> buffer(10);
-      auto bytes_written = kapi::filesystem::write(999, buffer.data(), buffer.size());
+      auto const invalid_fd = 999uz;
+      auto bytes_written = kapi::filesystem::write(invalid_fd, buffer.data(), buffer.size());
       REQUIRE(bytes_written < 0);
     }
   }