diff --git a/src/modules/module-avb/maap.c b/src/modules/module-avb/maap.c
index 4f8942b73..7228c2d19 100644
--- a/src/modules/module-avb/maap.c
+++ b/src/modules/module-avb/maap.c
@@ -421,7 +421,10 @@ struct avb_maap *avb_maap_register(struct server *server)
 	maap->server = server;
 	pw_log_info("0x%"PRIx64" %d", server->entity_id, server->ifindex);
 
-	pw_getrandom(maap->xsubi, sizeof(maap->xsubi), 0);
+	if (pw_getrandom(maap->xsubi, sizeof(maap->xsubi), 0) != sizeof(maap->xsubi)) {
+		res = -errno;
+		goto error;
+	}
 	load_state(maap);
 
 	maap->source = pw_loop_add_io(server->impl->loop, fd, SPA_IO_IN, true, on_socket_data, maap);