diff --git a/models/bot.go b/models/bot.go
index 5c66cfd..ff49589 100644
--- a/models/bot.go
+++ b/models/bot.go
@@ -97,7 +97,7 @@ var handleMessage = func(msgs ...interface{}) interface{} {
 	tp := msgs[1].(string)
 	uid := msgs[2].(int)
 	gid := 0
-	if len(msgs) == 4 {
+	if len(msgs) >= 4 {
 		gid = msgs[3].(int)
 	}