diff --git a/handler/headmaster/headmaster.go b/handler/headmaster/headmaster.go
index 62353ad..2e9ca51 100644
--- a/handler/headmaster/headmaster.go
+++ b/handler/headmaster/headmaster.go
@@ -24,7 +24,7 @@ func init() {
 }
 
 func headmasterHandler(msg model.Message) (reply model.Reply) {
-	from := util.From(msg.GroupInfo.GroupId, msg.UserId)
+	from := util.From(msg.GroupInfo.GroupId, 0)
 	if len(msg.RawMsg) > 7 && msg.RawMsg[0:7] == "校长 " {
 		return model.Reply{
 			ReplyMsg:       ask(from, msg.RawMsg[7:]),