--- a/compat/cdefs.h
+++ b/compat/cdefs.h
@@ -3,8 +3,6 @@
 #ifndef COMPAT_CDEFS_H
 #define COMPAT_CDEFS_H
 
-#include <sys/cdefs.h>
-
 #ifndef __dead
 #define __dead \
         __attribute__((__noreturn__))