diff --git a/AnnoyancesFilter/Popups/sections/antiadblock.txt b/AnnoyancesFilter/Popups/sections/antiadblock.txt
index d069c3e74d9..1068b98dca1 100644
--- a/AnnoyancesFilter/Popups/sections/antiadblock.txt
+++ b/AnnoyancesFilter/Popups/sections/antiadblock.txt
@@ -661,6 +661,7 @@ armidaleexpress.com.au,bendigoadvertiser.com.au,canberratimes.com.au,centralwest
 ! The rules for content blockers only:
 ! LINK: AnnoyancesFilter/Popups/sections/antiadblock.txt#content_blockers
 !
+mathplayground.com###revcatch_modal
 dellin.ru##div[data-qa="ad_block_notification"]
 strumyk.icu#%#//scriptlet('prevent-setTimeout', 'checkAdBlock')
 strumyk.icu#$##adblock-overlay { display: none !important; }