diff --git a/rust/kernel/drm/kms/atomic.rs b/rust/kernel/drm/kms/atomic.rs
index 9da114f7626eb5d7c5c6a1a5157a2f3fe8cd81f4..4fbacc675e6ad6394779ce33ead2e712d657ed9c 100644
--- a/rust/kernel/drm/kms/atomic.rs
+++ b/rust/kernel/drm/kms/atomic.rs
@@ -173,7 +173,7 @@ impl<T: KmsDriver> AtomicStateMutator<T> {
         self.state.as_raw()
     }
 
-    /// Return the [`Device`] for this [`AtomicStateMutator`]
+    /// Return the [`Device`] for this [`AtomicStateMutator`].
     pub fn drm_dev(&self) -> &Device<T> {
         self.state.drm_dev()
     }