diff --git a/src/IO/HTTPCommon.cpp b/src/IO/HTTPCommon.cpp
index 6a3ebb97734..c869b212595 100644
--- a/src/IO/HTTPCommon.cpp
+++ b/src/IO/HTTPCommon.cpp
@@ -120,7 +120,7 @@ namespace
                 session->setProxyHost(proxy_host);
                 session->setProxyPort(proxy_port);
 
-#if !defined(ARCADIA_BUILD)
+#if defined(POCO_CLICKHOUSE_PATCH)
                 session->setProxyProtocol(proxy_scheme);
 
                 /// Turn on tunnel mode if proxy scheme is HTTP while endpoint scheme is HTTPS.