diff --git a/sys/sys/md5.h b/sys/sys/md5.h
index 3ffe2fedbb00..964698b2ad7c 100644
--- a/sys/sys/md5.h
+++ b/sys/sys/md5.h
@@ -44,8 +44,5 @@ char * MD5End(MD5_CTX *, char *);
 char * MD5File(const char *, char *);
 char * MD5FileChunk(const char *, char *, off_t, off_t);
 char * MD5Data(const unsigned char *, unsigned int, char *);
-#ifdef _KERNEL
-void MD5Transform(u_int32_t [4], const unsigned char [64]);
-#endif
 __END_DECLS
 #endif /* _SYS_MD5_H_ */