diff --git a/ydb/core/kqp/common/kqp_tx.h b/ydb/core/kqp/common/kqp_tx.h
index a2728fe2610c..68039da84c2d 100644
--- a/ydb/core/kqp/common/kqp_tx.h
+++ b/ydb/core/kqp/common/kqp_tx.h
@@ -236,6 +236,7 @@ class TKqpTransactionContext : public NYql::TKikimrTransactionContextBase  {
         HasOlapTable = false;
         HasOltpTable = false;
         HasTableWrite = false;
+        HasUncommittedChangesRead = false;
     }
 
     TKqpTransactionInfo GetInfo() const;