diff --git a/util/Event.h b/util/Event.h
index 489ff04bb..7dd9cb367 100644
--- a/util/Event.h
+++ b/util/Event.h
@@ -84,4 +84,4 @@ class Event
     };
 };
 
-#endif SAMPLE_UTIL_EVENT_H
+#endif // SAMPLE_UTIL_EVENT_H