--- a/include/sys/timex.h
+++ b/include/sys/timex.h
@@ -116,7 +116,8 @@ struct timex
 
 __BEGIN_DECLS
 
-extern int __adjtimex (struct timex *__ntx) __THROW;
+#undef __adjtimex
+#define __adjtimex adjtimex
 extern int adjtimex (struct timex *__ntx) __THROW;
 
 extern int ntp_gettime (struct ntptimeval *__ntv) __THROW;