diff --git a/daemon/worker.c b/daemon/worker.c
index 06c0040a4b00b67443d2bde49d6560410de0ec75..2572b5a6da7174867b6559f2d6e15c9f82c0585f 100644
--- a/daemon/worker.c
+++ b/daemon/worker.c
@@ -456,9 +456,13 @@ static bool subreq_update_cookies(struct qr_task *task, uv_udp_t *handle,
 {
 	assert(task);
 	assert(handle);
-	assert(srvr_addr);
 	assert(pkt);
 
+	/* Must have server address. */
+	if (!srvr_addr) {
+		return false;
+	}
+
 	struct kr_cookie_settings *clnt_sett = &task->req.ctx->cookie_ctx.clnt;
 
 	/* Cookies disabled or packet has no ENDS section. */