diff --git a/Source/domainset/cdn.conf b/Source/domainset/cdn.conf
index b79bde68..a6b0eba5 100644
--- a/Source/domainset/cdn.conf
+++ b/Source/domainset/cdn.conf
@@ -1148,6 +1148,7 @@ files.mastodon.ktachibana.party
 assets.mozilla.social
 assets.chaos.social
 .pixelcdn.net
+media.masto.nu
 # misskey
 .misskeyusercontent.com
 .misskeyusercontent.jp