diff --git a/BaseFilter/sections/adservers_firstparty.txt b/BaseFilter/sections/adservers_firstparty.txt
index 7458faa6329..30a5ac713ac 100644
--- a/BaseFilter/sections/adservers_firstparty.txt
+++ b/BaseFilter/sections/adservers_firstparty.txt
@@ -7,6 +7,7 @@
 ! Bad: ||legitwebsite.com^$third-party (should be in adservers.txt)
 !
 !
+||ad.wrtn.ai^
 ||ip356694986.ahcdn.com^
 ||w.love4porn.com^
 ||ads.cdn2-img.net^