diff --git a/ydb/core/http_proxy/http_req.h b/ydb/core/http_proxy/http_req.h
index 7683f7634f19..0081096d3891 100644
--- a/ydb/core/http_proxy/http_req.h
+++ b/ydb/core/http_proxy/http_req.h
@@ -58,7 +58,7 @@ struct THttpResponseData {
     TString ErrorText{"OK"};
     TString YmqStatusCode;
     ui32 YmqHttpCode;
-    bool YmqIsFifo;
+    bool YmqIsFifo = false;
 
     TString DumpBody(MimeTypes contentType);
 };