diff --git a/GermanFilter/sections/adservers.txt b/GermanFilter/sections/adservers.txt
index 856f2dbbe0d..edcf0ab52cd 100644
--- a/GermanFilter/sections/adservers.txt
+++ b/GermanFilter/sections/adservers.txt
@@ -7,6 +7,7 @@
 ! Bad: ||adssubdomain.legitwebsite.com^ (should be in adservers_firstparty.txt)
 !
 !
+||sqrt-5041.de^
 ||tizofvtuqo.com^
 ||ads.goldbach-germany.de^
 ||remp-campaign.golem.de^