diff --git a/src/examples/media-session/default-nodes.c b/src/examples/media-session/default-nodes.c
index d56c51d28..769bc5a5f 100644
--- a/src/examples/media-session/default-nodes.c
+++ b/src/examples/media-session/default-nodes.c
@@ -129,7 +129,7 @@ static void remove_idle_timeout(struct impl *impl)
 
 	if (impl->idle_timeout) {
 		if ((res = sm_media_session_save_state(impl->session,
-						SESSION_KEY, PREFIX, impl->properties)) < 0)
+						SESSION_KEY, impl->properties)) < 0)
 			pw_log_error("can't save "SESSION_KEY" state: %s", spa_strerror(res));
 		pw_loop_destroy_source(main_loop, impl->idle_timeout);
 		impl->idle_timeout = NULL;
@@ -295,7 +295,7 @@ int sm_default_nodes_start(struct sm_media_session *session)
 	}
 
 	if ((res = sm_media_session_load_state(impl->session,
-					SESSION_KEY, PREFIX, impl->properties)) < 0)
+					SESSION_KEY, impl->properties)) < 0)
 		pw_log_info("can't load "SESSION_KEY" state: %s", spa_strerror(res));
 
 	sm_media_session_add_listener(impl->session, &impl->listener, &session_events, impl);
diff --git a/src/examples/media-session/default-profile.c b/src/examples/media-session/default-profile.c
index 01121ad24..dc33c081d 100644
--- a/src/examples/media-session/default-profile.c
+++ b/src/examples/media-session/default-profile.c
@@ -87,7 +87,7 @@ static void remove_idle_timeout(struct impl *impl)
 
 	if (impl->idle_timeout) {
 		if ((res = sm_media_session_save_state(impl->session,
-						SESSION_KEY, PREFIX, impl->properties)) < 0)
+						SESSION_KEY, impl->properties)) < 0)
 			pw_log_error("can't save "SESSION_KEY" state: %s", spa_strerror(res));
 		pw_loop_destroy_source(main_loop, impl->idle_timeout);
 		impl->idle_timeout = NULL;
@@ -420,7 +420,7 @@ int sm_default_profile_start(struct sm_media_session *session)
 	}
 
 	if ((res = sm_media_session_load_state(impl->session,
-					SESSION_KEY, PREFIX, impl->properties)) < 0)
+					SESSION_KEY, impl->properties)) < 0)
 		pw_log_info("can't load "SESSION_KEY" state: %s", spa_strerror(res));
 
 	sm_media_session_add_listener(impl->session, &impl->listener, &session_events, impl);
diff --git a/src/examples/media-session/default-routes.c b/src/examples/media-session/default-routes.c
index 2223e0536..b39161cfd 100644
--- a/src/examples/media-session/default-routes.c
+++ b/src/examples/media-session/default-routes.c
@@ -87,7 +87,7 @@ static void remove_idle_timeout(struct impl *impl)
 
 	if (impl->idle_timeout) {
 		if ((res = sm_media_session_save_state(impl->session,
-						SESSION_KEY, PREFIX, impl->to_restore)) < 0)
+						SESSION_KEY, impl->to_restore)) < 0)
 			pw_log_error("can't save "SESSION_KEY" state: %s", spa_strerror(res));
 		pw_loop_destroy_source(main_loop, impl->idle_timeout);
 		impl->idle_timeout = NULL;
@@ -988,7 +988,7 @@ int sm_default_routes_start(struct sm_media_session *session)
 	}
 
 	if ((res = sm_media_session_load_state(impl->session,
-					SESSION_KEY, PREFIX, impl->to_restore)) < 0)
+					SESSION_KEY, impl->to_restore)) < 0)
 		pw_log_info("can't load "SESSION_KEY" state: %s", spa_strerror(res));
 
 	sm_media_session_add_listener(impl->session, &impl->listener, &session_events, impl);
diff --git a/src/examples/media-session/media-session.c b/src/examples/media-session/media-session.c
index 52c633e25..4cc802ce8 100644
--- a/src/examples/media-session/media-session.c
+++ b/src/examples/media-session/media-session.c
@@ -1787,13 +1787,13 @@ int sm_media_session_load_conf(struct sm_media_session *sess, const char *name,
 }
 
 int sm_media_session_load_state(struct sm_media_session *sess,
-		const char *name, const char *prefix, struct pw_properties *props)
+		const char *name, struct pw_properties *props)
 {
 	return pw_conf_load_state(SESSION_PREFIX, name, props);
 }
 
 int sm_media_session_save_state(struct sm_media_session *sess,
-		const char *name, const char *prefix, const struct pw_properties *props)
+		const char *name, const struct pw_properties *props)
 {
 	return pw_conf_save_state(SESSION_PREFIX, name, props);
 }
diff --git a/src/examples/media-session/media-session.h b/src/examples/media-session/media-session.h
index b530e798d..64b2827d8 100644
--- a/src/examples/media-session/media-session.h
+++ b/src/examples/media-session/media-session.h
@@ -293,9 +293,9 @@ int sm_media_session_load_conf(struct sm_media_session *sess,
 		const char *name, struct pw_properties *conf);
 
 int sm_media_session_load_state(struct sm_media_session *sess,
-		const char *name, const char *prefix, struct pw_properties *props);
+		const char *name, struct pw_properties *props);
 int sm_media_session_save_state(struct sm_media_session *sess,
-		const char *name, const char *prefix, const struct pw_properties *props);
+		const char *name, const struct pw_properties *props);
 
 int sm_media_session_match_rules(const char *rules, size_t size,
 		struct pw_properties *props);
diff --git a/src/examples/media-session/restore-stream.c b/src/examples/media-session/restore-stream.c
index 9e2abad8f..47e23deec 100644
--- a/src/examples/media-session/restore-stream.c
+++ b/src/examples/media-session/restore-stream.c
@@ -86,7 +86,7 @@ static void remove_idle_timeout(struct impl *impl)
 
 	if (impl->idle_timeout) {
 		if ((res = sm_media_session_save_state(impl->session,
-						SESSION_KEY, PREFIX, impl->props)) < 0)
+						SESSION_KEY, impl->props)) < 0)
 			pw_log_error("can't save "SESSION_KEY" state: %s", spa_strerror(res));
 		pw_loop_destroy_source(main_loop, impl->idle_timeout);
 		impl->idle_timeout = NULL;
@@ -524,7 +524,7 @@ int sm_restore_stream_start(struct sm_media_session *session)
 			&metadata_events, impl);
 
 	if ((res = sm_media_session_load_state(impl->session,
-					SESSION_KEY, PREFIX, impl->props)) < 0)
+					SESSION_KEY, impl->props)) < 0)
 		pw_log_info("can't load "SESSION_KEY" state: %s", spa_strerror(res));
 
 	sync_metadata(impl);