diff --git a/.env b/.env
index 3199b3714..a71332d5e 100644
--- a/.env
+++ b/.env
@@ -1,4 +1,3 @@
-
 MONGO_IMAGE=mongo:6.0.2
 REDIS_IMAGE=redis:7.0.0
 ZOOKEEPER_IMAGE=bitnami/zookeeper:3.8
diff --git a/pkg/callbackstruct/group.go b/pkg/callbackstruct/group.go
index 05c476cc3..a912f5d6a 100644
--- a/pkg/callbackstruct/group.go
+++ b/pkg/callbackstruct/group.go
@@ -66,9 +66,9 @@ type CallbackGroupMember struct {
 
 type CallbackBeforeMembersJoinGroupReq struct {
 	CallbackCommand `json:"callbackCommand"`
-	GroupID         string `json:"groupID"`
-	MembersList     []*CallbackGroupMember
-	GroupEx         string `json:"groupEx"`
+	GroupID         string                 `json:"groupID"`
+	MembersList     []*CallbackGroupMember `json:"memberList"`
+	GroupEx         string                 `json:"groupEx"`
 }
 
 type MemberJoinGroupCallBack struct {