diff --git a/BaseFilter/sections/specific.txt b/BaseFilter/sections/specific.txt
index 44c8b9edfa3..80cda6632c4 100644
--- a/BaseFilter/sections/specific.txt
+++ b/BaseFilter/sections/specific.txt
@@ -277,6 +277,9 @@ chortle.co.uk,coloring.ws,dltk-holidays.com,dltk-kids.com,kidzone.ws,pcsteps.com
 !
 !
 !
+chordu.com##.chordu_trk_title
+chordu.com##div[class^="chordu_cont_"]
+chordu.com##div[class^="chordu_"][class*="_ad"]
 chordu.com##.ad_sidebar_top
 chordu.com##.chordu_srch_title
 thewindowsclub.com###text-422067558
diff --git a/MobileFilter/sections/specific_web.txt b/MobileFilter/sections/specific_web.txt
index c77f6756439..e75626e31ae 100644
--- a/MobileFilter/sections/specific_web.txt
+++ b/MobileFilter/sections/specific_web.txt
@@ -52,6 +52,8 @@ berkem.ru,pixiv.net,cartoonpornvideos.com,m.economictimes.com,beethovenmaster.co
 ! ##.ad
 m.proporn.com,rakuraku-info.jp,sugoren.com,dailynewsonline.jp,yakuji.co.jp,asahi.com,m.winporn.com,slate.com,sankei.com,gameranbu.jp,seiga.nicovideo.jp,m.arukikata.co.jp,setn.com,hateblo.jp,hatenablog.com,hatenablog.jp,hatenadiary.com,hatenadiary.jp,hatenadiary.org,syosetu.org##.ad
 !
+chordu.com##.chordu_above_similar
+chordu.com###in_chord_sheet_ad
 ganmodoki.net###mobile-af
 odatv4.com##.d-sm-none[style*="width:100%;text-align:center;"]
 krautundrueben.de##.mobilead