diff --git a/EnglishFilter/sections/adservers_firstparty.txt b/EnglishFilter/sections/adservers_firstparty.txt
index 7de89b22c4d..2e28119a695 100644
--- a/EnglishFilter/sections/adservers_firstparty.txt
+++ b/EnglishFilter/sections/adservers_firstparty.txt
@@ -1,6 +1,7 @@
 !
 ! Section contains the list of advertising networks, which are hosted on non advertising sites as subdomains
 !
+||bidr.trellian.com^
 ||dxprljqoay4rt.cloudfront.net^
 ||dash.tmearn.com^
 ||d1uanozc5el74n.cloudfront.net^