diff --git a/src/c/endian.h b/src/c/endian.h
index 8b3382c..62a9951 100644
--- a/src/c/endian.h
+++ b/src/c/endian.h
@@ -1,5 +1,5 @@
-#ifndef FOUG_ENDIAN_H
-#define FOUG_ENDIAN_H
+#ifndef FOUG_C_ENDIAN_H
+#define FOUG_C_ENDIAN_H
 
 #include "global.h"