diff --git a/lib/ubus.c b/lib/ubus.c
index 981e337e..62e72295 100644
--- a/lib/ubus.c
+++ b/lib/ubus.c
@@ -665,6 +665,9 @@ uc_ubus_have_uloop(void)
 	bool prev = uloop_cancelled;
 	bool active;
 
+	if (uloop_fd_set_cb)
+		return true;
+
 	uloop_cancelled = true;
 	active = uloop_cancelling();
 	uloop_cancelled = prev;