diff --git a/xmpp/handlers.go b/xmpp/handlers.go
index c19a4ef..3709443 100644
--- a/xmpp/handlers.go
+++ b/xmpp/handlers.go
@@ -9,7 +9,7 @@ import (
 )
 
 func logPacketType(p stanza.Packet) {
-	log.Warn("Ignoring packet: %T\n", p)
+	log.Warnf("Ignoring packet: %T\n", p)
 }
 
 // HandleIq processes an incoming XMPP iq