diff --git a/radio_types.h b/radio_types.h
index e852fdb..22f446b 100755
--- a/radio_types.h
+++ b/radio_types.h
@@ -1,6 +1,6 @@
 // --------------------------------------------------------------
-#ifndef _RADIO_TYPES_H_
-#define	_RADIO_TYPES_H_
+#ifndef RADIO_TYPES_H
+#define	RADIO_TYPES_H
 
 #include <stdint.h>
 // --------------------------------------------------------------
@@ -25,4 +25,4 @@ typedef uint8_t data_t;
 
 
 // --------------------------------------------------------------
-#endif // _RADIO_TYPES_H_
+#endif // RADIO_TYPES_H