diff --git a/JapaneseFilter/sections/adservers_firstparty.txt b/JapaneseFilter/sections/adservers_firstparty.txt
index e982b8a7678..ed84c235310 100644
--- a/JapaneseFilter/sections/adservers_firstparty.txt
+++ b/JapaneseFilter/sections/adservers_firstparty.txt
@@ -6,6 +6,7 @@
 ! Bad: /banner.jpg (should be in general_url.txt)
 ! Bad: ||legitwebsite.com^$third-party (should be in adservers.txt)
 !
+||jobbox-front.mamastar.jp^
 ||ad.datadeliver.net^
 ||ad.firestorage.jp^
 ||mbada.nan.co.jp^