diff --git a/pkg/common/db/mongoModel.go b/pkg/common/db/mongoModel.go
index 28513f4a1..2352fed42 100644
--- a/pkg/common/db/mongoModel.go
+++ b/pkg/common/db/mongoModel.go
@@ -12,6 +12,7 @@ import (
 	"fmt"
 	"github.com/go-redis/redis/v8"
 	"github.com/gogo/protobuf/sortkeys"
+	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
 	"math/rand"
@@ -262,13 +263,15 @@ func (d *DataBases) GetMsgBySeqList(uid string, seqList []uint32, operationID st
 func (d *DataBases) GetUserMsgListByIndex(ID string, index int64) (*UserChat, error) {
 	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
 	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cChat)
-	regex := fmt.Sprintf("^%s", ID)
+	regex := fmt.Sprintf("/^%s/", ID)
 	findOpts := options.Find().SetLimit(1).SetSkip(index).SetSort(bson.M{"uid": 1})
 	var msgs []UserChat
-	cursor, err := c.Find(ctx, bson.M{"uid": bson.M{"$regex": regex}}, findOpts)
+	cursor, err := c.Find(ctx, bson.M{"uid": bson.M{"$regex": primitive.Regex{Pattern: regex}}}, findOpts)
 	if err != nil {
 		return nil, utils.Wrap(err, "")
 	}
+	v, err := cursor.Current.Values()
+	log.NewInfo("", "values", v, err)
 	err = cursor.Decode(&msgs)
 	if err != nil {
 		return nil, utils.Wrap(err, fmt.Sprintf("cursor is %s", cursor.Current.String()))