diff --git a/clickhouse/config.xml b/clickhouse/config.xml
index 8798446895..19a0ecf80a 100644
--- a/clickhouse/config.xml
+++ b/clickhouse/config.xml
@@ -1,5 +1,5 @@
 <yandex>
- <!-- This include is important! It is required for the version of Clickhouse used on ARM to read the environment variable. -->
+ <!-- This include is important! It is required for the version of Clickhouse used on ARM to read the environment variable. This must be a one-liner to avoid errors in Clickhouse. -->
     <max_server_memory_usage_to_ram_ratio><include from_env="MAX_MEMORY_USAGE_RATIO"/></max_server_memory_usage_to_ram_ratio>
     <logger>
         <level>warning</level>