diff --git a/console-socket.c b/console-socket.c
index d535182..3873440 100644
--- a/console-socket.c
+++ b/console-socket.c
@@ -34,7 +34,8 @@
 	ssize_t rc;
 
 	if (!id) {
-		id = "default";
+		errno = EINVAL;
+		return -1;
 	}
 
 	rc = snprintf(sun_path + 1, sizeof(socket_path_t) - 1,