diff --git a/authfd.c b/authfd.c
index 4b647a628..8288ef215 100644
--- a/authfd.c
+++ b/authfd.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: authfd.c,v 1.123 2020/03/06 18:24:39 markus Exp $ */
+/* $OpenBSD: authfd.c,v 1.124 2020/06/26 05:03:36 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -336,7 +336,7 @@ ssh_free_identitylist(struct ssh_identitylist *idl)
  * Returns 0 if found, or a negative SSH_ERR_* error code on failure.
  */
 int
-ssh_agent_has_key(int sock, struct sshkey *key)
+ssh_agent_has_key(int sock, const struct sshkey *key)
 {
 	int r, ret = SSH_ERR_KEY_NOT_FOUND;
 	size_t i;
@@ -534,7 +534,7 @@ ssh_add_identity_constrained(int sock, struct sshkey *key,
  * This call is intended only for use by ssh-add(1) and like applications.
  */
 int
-ssh_remove_identity(int sock, struct sshkey *key)
+ssh_remove_identity(int sock, const struct sshkey *key)
 {
 	struct sshbuf *msg;
 	int r;
diff --git a/authfd.h b/authfd.h
index c3bf6259a..4fbf82f8c 100644
--- a/authfd.h
+++ b/authfd.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: authfd.h,v 1.48 2019/12/21 02:19:13 djm Exp $ */
+/* $OpenBSD: authfd.h,v 1.49 2020/06/26 05:03:36 djm Exp $ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -33,8 +33,8 @@ void	ssh_free_identitylist(struct ssh_identitylist *idl);
 int	ssh_add_identity_constrained(int sock, struct sshkey *key,
 	    const char *comment, u_int life, u_int confirm, u_int maxsign,
 	    const char *provider);
-int	ssh_agent_has_key(int sock, struct sshkey *key);
-int	ssh_remove_identity(int sock, struct sshkey *key);
+int	ssh_agent_has_key(int sock, const struct sshkey *key);
+int	ssh_remove_identity(int sock, const struct sshkey *key);
 int	ssh_update_card(int sock, int add, const char *reader_id,
 	    const char *pin, u_int life, u_int confirm);
 int	ssh_remove_all_identities(int sock, int version);