diff --git a/shared/db/GVGLeagueFarmRec.ts b/shared/db/GVGLeagueFarmRec.ts
index edb0958f3..218efa5fc 100644
--- a/shared/db/GVGLeagueFarmRec.ts
+++ b/shared/db/GVGLeagueFarmRec.ts
@@ -52,6 +52,7 @@ export default class GVGLeagueFarmRec extends BaseModel {
 
     public static async insertRecs(type: GVG_RESOURCE_TYPE,params: GVGLeagueFarmType[]) {
         let insertParams = params.map(field => {
+            delete field._id;
             return { ...field, startRoleId: field.lockRoleId, startTime: new Date(), type }
         })
         await GVGLeagueFarmRecModel.insertMany(insertParams);