diff --git a/src/pipewire/global.c b/src/pipewire/global.c
index f85205e65..aca3cfaaa 100644
--- a/src/pipewire/global.c
+++ b/src/pipewire/global.c
@@ -36,6 +36,8 @@
 PW_LOG_TOPIC_EXTERN(log_global);
 #define PW_LOG_TOPIC_DEFAULT log_global
 
+static uint64_t serial = 0;
+
 /** \cond */
 struct impl {
 	struct pw_global this;
@@ -133,10 +135,12 @@ int pw_global_register(struct pw_global *global)
 
 	spa_list_append(&context->global_list, &global->link);
 	global->registered = true;
+	global->serial = ++serial;
 
 	spa_list_for_each(registry, &context->registry_resource_list, link) {
 		uint32_t permissions = pw_global_get_permissions(global, registry->client);
-		pw_log_debug("registry %p: global %d %08x", registry, global->id, permissions);
+		pw_log_debug("registry %p: global %d %08x serial:%"PRIu64,
+				registry, global->id, permissions, global->serial);
 		if (PW_PERM_IS_R(permissions))
 			pw_registry_resource_global(registry,
 						    global->id,
@@ -337,8 +341,9 @@ int pw_global_update_permissions(struct pw_global *global, struct pw_impl_client
 			pw_registry_resource_global_remove(resource, global->id);
 		}
 		else if (do_show) {
-			pw_log_debug("client %p: resource %p show global %d",
-					client, resource, global->id);
+			pw_log_debug("client %p: resource %p show global %d serial:%"PRIu64,
+					client, resource, global->id,
+					global->serial);
 			pw_registry_resource_global(resource,
 						    global->id,
 						    new_permissions,
diff --git a/src/pipewire/private.h b/src/pipewire/private.h
index a9033eba6..388ca6bc8 100644
--- a/src/pipewire/private.h
+++ b/src/pipewire/private.h
@@ -330,6 +330,7 @@ struct pw_global {
 
 	pw_global_bind_func_t func;	/**< bind function */
 	void *object;			/**< object associated with the interface */
+	uint64_t serial;		/**< increasing serial number */
 
 	struct spa_list resource_list;	/**< The list of resources of this global */