diff --git a/whitelist.referral.adguard b/whitelist.referral.adguard
index e2dbab7..ce9429a 100644
--- a/whitelist.referral.adguard
+++ b/whitelist.referral.adguard
@@ -1,5 +1,6 @@
 @@||5014.xg4ken.com^
 @@||7eer.net^
+@@||a1.adform.net^
 @@||aax-eu-retail-direct.amazon-adsystem.com^
 @@||action.metaffiliation.com^
 @@||ad.atdmt.com^