diff --git a/docs/general/ad-filtering/create-own-filters.md b/docs/general/ad-filtering/create-own-filters.md
index 24d9727d3c1..b4375e55a53 100644
--- a/docs/general/ad-filtering/create-own-filters.md
+++ b/docs/general/ad-filtering/create-own-filters.md
@@ -219,7 +219,7 @@ This limitation can be circumvented by using a `/.*/` regular expression inside
 This rule will not be ignored:
 
 ```text
-(/.*/$replace=/a/b/)
+/.*/$replace=/a/b/
 ```
 
 **Exceptions**