diff --git a/Marlin/buzzer.h b/Marlin/buzzer.h
index 7d627fc93..e55870c23 100644
--- a/Marlin/buzzer.h
+++ b/Marlin/buzzer.h
@@ -5,4 +5,4 @@
     void buzz(long duration,uint16_t freq);
   #endif
 
-#endif BUZZER_H
\ No newline at end of file
+#endif //BUZZER_H
\ No newline at end of file