diff --git a/degesch.c b/degesch.c
index c48d43a..6e30bbf 100644
--- a/degesch.c
+++ b/degesch.c
@@ -3108,7 +3108,7 @@ on_irc_timeout (void *user_data)
 {
 	// Provoke a response from the server
 	struct server *s = user_data;
-	irc_send (s, "PING :%s", s->irc_user->nickname);
+	irc_send (s, "PING :%" PRIi64, (int64_t) time (NULL));
 }
 
 // --- Processing server output ------------------------------------------------