diff --git a/src/controller.h b/src/controller.h
index f85f24fdcadfb7060f2615bad2039f07e0765166..75feb96c3471e3522fc17f10f84cc091465f275a 100644
--- a/src/controller.h
+++ b/src/controller.h
@@ -1,4 +1,4 @@
-#ifndef controller_H
-#define controller_H
+#ifndef CONTROLLER_H
+#define CONTROLLER_H
 int controller(int w, int y, int maxControl);
-#endif  // controller_H
+#endif  // CONTROLLER_H