diff --git a/configure.ac b/configure.ac
index e41ee59..6c2c548 100644
--- a/configure.ac
+++ b/configure.ac
@@ -87,7 +87,7 @@ AC_SEARCH_LIBS([arc4random], [crypto])
 AC_SEARCH_LIBS([clock_getres],[rt posix4])
 AC_SEARCH_LIBS([clock_gettime],[rt posix4])
 AC_SEARCH_LIBS([ibuf_open], [util])
-AC_SEARCH_LIBS([MD5Init], [md])
+AC_SEARCH_LIBS([MD5Init], [md md5])
 AC_SEARCH_LIBS([SHA512Init], [md])
 
 AC_CHECK_FUNCS([arc4random ibuf_open MD5Init SHA512Init])
diff --git a/include/md5.h b/include/md5.h
index 10bbbd6..3e54015 100644
--- a/include/md5.h
+++ b/include/md5.h
@@ -8,52 +8,3 @@
 #else
 #include "md5_openbsd.h"
 #endif
-/*	$OpenBSD: md5.h,v 1.16 2004/06/22 01:57:30 jfb Exp $	*/
-
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest.  This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- */
-
-#ifndef _MD5_H_
-#define _MD5_H_
-
-#define	MD5_BLOCK_LENGTH		64
-#define	MD5_DIGEST_LENGTH		16
-#define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
-
-typedef struct MD5Context {
-	u_int32_t state[4];			/* state */
-	u_int64_t count;			/* number of bits, mod 2^64 */
-	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
-} MD5_CTX;
-
-__BEGIN_DECLS
-void	 MD5Init(MD5_CTX *);
-void	 MD5Update(MD5_CTX *, const u_int8_t *, size_t)
-		__attribute__((__bounded__(__string__,2,3)));
-void	 MD5Pad(MD5_CTX *);
-void	 MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
-		__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
-void	 MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
-		__attribute__((__bounded__(__minbytes__,1,4)))
-		__attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
-char	*MD5End(MD5_CTX *, char *)
-		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
-char	*MD5File(const char *, char *)
-		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
-char	*MD5FileChunk(const char *, char *, off_t, off_t)
-		__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
-char	*MD5Data(const u_int8_t *, size_t, char *)
-		__attribute__((__bounded__(__string__,1,2)))
-		__attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
-__END_DECLS
-
-#endif /* _MD5_H_ */