diff --git a/controllers/client/sign.go b/controllers/client/sign.go
index 0bb9b3e..89cec6a 100644
--- a/controllers/client/sign.go
+++ b/controllers/client/sign.go
@@ -26,7 +26,7 @@ func (t *SignCtl) CheckSign() {
 	exist, err := live.GetByActivityId(activityId)
 	t.CheckErr(err)
 	t.Assert(exist, code.MSG_ACTIVITY_NOT_EXIST, "直播活动不存在")
-	if live.AdaptationFunc != nil {
+	if live.AdaptationFunc != nil && len(live.AdaptationFunc) != 0 {
 		exist, err = new(models.ModuleServiceHistory).ExistSignModule(live.AdaptationFunc)
 		t.CheckErr(err)
 		if !exist {