diff --git a/internal/rpc/msg/revoke.go b/internal/rpc/msg/revoke.go
index fb32550e0..a2b87aa3c 100644
--- a/internal/rpc/msg/revoke.go
+++ b/internal/rpc/msg/revoke.go
@@ -53,7 +53,8 @@ func (m *msgServer) RevokeMsg(ctx context.Context, req *msg.RevokeMsgReq) (*msg.
 	if len(msgs) == 0 {
 		return nil, errs.ErrRecordNotFound.Wrap("msg not found")
 	}
-	log.ZInfo(ctx, "GetMsgBySeqs", "conversationID", conversationID, "seq", req.Seq, "msg", msgs[0])
+	data, _ := json.Marshal(msgs[0])
+	log.ZInfo(ctx, "GetMsgBySeqs", "conversationID", conversationID, "seq", req.Seq, "msg", string(data))
 	sendID := msgs[0].SendID
 	if !tokenverify.IsAppManagerUid(ctx) {
 		if req.GroupID == "" {