diff --git a/MobileFilter/sections/specific_web.txt b/MobileFilter/sections/specific_web.txt
index 307175b7318..405049f8ee7 100644
--- a/MobileFilter/sections/specific_web.txt
+++ b/MobileFilter/sections/specific_web.txt
@@ -84,6 +84,7 @@ sp.manga.nicovideo.jp##div[style^="--ads-width:"]
 !
 ! SECTION: Regular rules
 !
+h2ch.com###ad_300x250_source
 gendai.media##div[style="width:320px;min-width:320px;min-height:50px"]
 pogovorim.by##.fsm_news_body > div[style]:has(> div[id*="ScriptRoot"])
 pornl.com#?#.wrapper > section:has(> div > span:matches-css(after, content: AD))