diff --git a/internal/rpc/group/callback.go b/internal/rpc/group/callback.go
index 1051a4f77..f877aa64a 100644
--- a/internal/rpc/group/callback.go
+++ b/internal/rpc/group/callback.go
@@ -127,7 +127,7 @@ func (s *groupServer) webhookBeforeMembersJoinGroup(ctx context.Context, before
 			return err
 		}
 
-		for _, memberCallbackResp := range resp.MemberCallbacks {
+		for _, memberCallbackResp := range resp.MemberCallbackList {
 			if _, ok := groupMembersMap[(*memberCallbackResp.UserID)]; ok {
 				if memberCallbackResp.MuteEndTime != nil {
 					groupMembersMap[(*memberCallbackResp.UserID)].MuteEndTime = time.UnixMilli(*memberCallbackResp.MuteEndTime)
diff --git a/pkg/callbackstruct/group.go b/pkg/callbackstruct/group.go
index a912f5d6a..23a73ebd2 100644
--- a/pkg/callbackstruct/group.go
+++ b/pkg/callbackstruct/group.go
@@ -82,7 +82,7 @@ type MemberJoinGroupCallBack struct {
 
 type CallbackBeforeMembersJoinGroupResp struct {
 	CommonCallbackResp
-	MemberCallbacks []*MemberJoinGroupCallBack
+	MemberCallbackList []*MemberJoinGroupCallBack `json:"memberCallbackList"`
 }
 
 type CallbackBeforeSetGroupMemberInfoReq struct {