diff --git a/src/transport/multicast.c b/src/transport/multicast.c
index 7e9b7c4ce..55b63c7df 100644
--- a/src/transport/multicast.c
+++ b/src/transport/multicast.c
@@ -55,7 +55,7 @@ void _zp_multicast_info_session(const _z_transport_t *zt, _z_config_t *ps) {
 }
 
 #else
-void _zp_multicast_fetch_zid(const _z_transport_t *zt, z_owned_closure_zid_t *callback) {
+void _zp_multicast_fetch_zid(const _z_transport_t *zt, _z_closure_zid_t *callback) {
     _ZP_UNUSED(zt);
     _ZP_UNUSED(callback);
 }