diff --git a/modules/mline/api_getReward.go b/modules/mline/api_getReward.go
index d6cc7fe2c..e0b3e5b3f 100644
--- a/modules/mline/api_getReward.go
+++ b/modules/mline/api_getReward.go
@@ -22,6 +22,7 @@ func (this *apiComp) GetReward(session comm.IUserSession, req *pb.MlineGetReward
 		update     map[string]interface{}
 		rsp        *pb.MlineGetRewardResp
 	)
+	rsp = &pb.MlineGetRewardResp{}
 	update = make(map[string]interface{})
 	if code = this.GetRewardCheck(session, req); code != pb.ErrorCode_Success {
 		return