diff --git a/tests/server-test.xml b/tests/server-test.xml
index dd21d55c78c..1f67317ad0a 100644
--- a/tests/server-test.xml
+++ b/tests/server-test.xml
@@ -1,5 +1,11 @@
 <?xml version="1.0"?>
-<!-- Config for test server in Arcadia -->
+<!--
+   Config for test server in "Arcadia".
+   This file is unused by ClickHouse continuous integration tests.
+   "Arcadia" is a proprietary monorepository in Yandex, that we don't care about.
+   If you are looking at this file, it is a wrong place.
+   Do not edit this file.
+-->
 <yandex>
     <logger>
         <level>trace</level>