diff --git a/sshbuf-misc.c b/sshbuf-misc.c
index 9b5aa208c..86e5fa34f 100644
--- a/sshbuf-misc.c
+++ b/sshbuf-misc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sshbuf-misc.c,v 1.14 2020/02/26 13:40:09 jsg Exp $	*/
+/*	$OpenBSD: sshbuf-misc.c,v 1.15 2020/06/05 03:24:36 djm Exp $	*/
 /*
  * Copyright (c) 2011 Damien Miller
  *
@@ -63,7 +63,7 @@ sshbuf_dump_data(const void *s, size_t len, FILE *f)
 }
 
 void
-sshbuf_dump(struct sshbuf *buf, FILE *f)
+sshbuf_dump(const struct sshbuf *buf, FILE *f)
 {
 	fprintf(f, "buffer %p len = %zu\n", buf, sshbuf_len(buf));
 	sshbuf_dump_data(sshbuf_ptr(buf), sshbuf_len(buf), f);
diff --git a/sshbuf.h b/sshbuf.h
index 94392c8be..ec7514eb3 100644
--- a/sshbuf.h
+++ b/sshbuf.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sshbuf.h,v 1.21 2020/04/26 09:38:14 dtucker Exp $	*/
+/*	$OpenBSD: sshbuf.h,v 1.22 2020/06/05 03:24:36 djm Exp $	*/
 /*
  * Copyright (c) 2011 Damien Miller
  *
@@ -242,7 +242,7 @@ int	sshbuf_put_eckey(struct sshbuf *buf, const EC_KEY *v);
 #endif /* WITH_OPENSSL */
 
 /* Dump the contents of the buffer in a human-readable format */
-void	sshbuf_dump(struct sshbuf *buf, FILE *f);
+void	sshbuf_dump(const struct sshbuf *buf, FILE *f);
 
 /* Dump specified memory in a human-readable format */
 void	sshbuf_dump_data(const void *s, size_t len, FILE *f);