diff --git a/app/mix/service/service.go b/app/mix/service/service.go
index b5247905..7a257cd1 100644
--- a/app/mix/service/service.go
+++ b/app/mix/service/service.go
@@ -4246,11 +4246,15 @@ func (s *Service) SaveSingleDistributeCallback(ctx *gin.Context, req *hvyogoprot
 				logger.Error("_DefaultSingleDistributeHis ClearLock fail, err: %v", err)
 			}
 		}
+		errorDesc := ""
+		if err != nil {
+			errorDesc = err.Error()
+		}
 		err = _DefaultSingleDistributeHis.OpUpdate(ctx, &single_distribute_his_proto.OpUpdateReq{
 			SingleDistributeHis: &dbstruct.SingleDistributeHis{
 				Id:          goproto.String(vo.RequestNo),
 				FinalStatus: goproto.Int64(finalStatus),
-				ErrorDesc:   goproto.String(err.Error()),
+				ErrorDesc:   goproto.String(errorDesc),
 			},
 		})
 		if err != nil {