diff --git a/server/wheelserver/model/user.go b/server/wheelserver/model/user.go
index 48ecf405..7c037e9e 100644
--- a/server/wheelserver/model/user.go
+++ b/server/wheelserver/model/user.go
@@ -56,6 +56,7 @@ func (this *User) DecDice(num int32) error {
 	if this.Score < int64(num) {
 		return errors.New("")
 	}
+	this.Score -= int64(num)
 	return nil
 }