diff --git a/src/compat.h b/src/compat.h
index e0ffdd4..e2cb734 100644
--- a/src/compat.h
+++ b/src/compat.h
@@ -18,12 +18,10 @@
 #ifndef _COMPAT_H_
 #define _COMPAT_H_
 
-#ifdef __GNUC__
-#define PACK( __Declaration__ ) __Declaration__ __attribute__((__packed__))
-#endif
-
 #ifdef _MSC_VER
 #define PACK( __Declaration__ ) __pragma( pack(push, 1) ) __Declaration__ __pragma( pack(pop) )
+#else
+#define PACK( __Declaration__ ) __Declaration__ __attribute__((__packed__))
 #endif
 
 #ifdef __cplusplus