diff --git a/executor/infoschema_reader.go b/executor/infoschema_reader.go
index be45e88c43687..1d90bffd7f8ea 100644
--- a/executor/infoschema_reader.go
+++ b/executor/infoschema_reader.go
@@ -265,7 +265,7 @@ func (c *statsCache) get(ctx sessionctx.Context) (map[int64]uint64, map[tableHis
 }
 
 func getAutoIncrementID(ctx sessionctx.Context, schema *model.DBInfo, tblInfo *model.TableInfo) (int64, error) {
-	is := ctx.GetSessionVars().TxnCtx.InfoSchema.(infoschema.InfoSchema)
+	is := infoschema.GetInfoSchema(ctx)
 	tbl, err := is.TableByName(schema.Name, tblInfo.Name)
 	if err != nil {
 		return 0, err