diff --git a/config/config.sample.php b/config/config.sample.php
index b0656e03af7..746992d98c1 100644
--- a/config/config.sample.php
+++ b/config/config.sample.php
@@ -1323,8 +1323,6 @@ $CONFIG = [
 	 *   cannot see activities in their stream or emails that happen after they
 	 *   are added until they log in again.
 	 *
-	 * WARNING: Before enabling this, read the warning Activity app chapter.
-	 *
 	 * Defaults to ``false``
 	 */
 	'activity_use_cached_mountpoints' => false,