diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 0f29e7b..032b645 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -133,7 +133,7 @@ pub fn to_errno(self) -> core::ffi::c_int {
     /// Returns the error encoded as a pointer.
     #[allow(dead_code)]
     pub(crate) fn to_ptr<T>(self) -> *mut T {
-        // SAFETY: self.0 is a valid error due to its invariant.
+        // SAFETY: `self.0` is a valid error due to its invariant.
         unsafe { bindings::ERR_PTR(self.0.into()) as *mut _ }
     }