diff --git a/app/logical/source/url/mastodon.rb b/app/logical/source/url/mastodon.rb
index 8105a1132..361fd6103 100644
--- a/app/logical/source/url/mastodon.rb
+++ b/app/logical/source/url/mastodon.rb
@@ -27,6 +27,10 @@ class Source::URL::Mastodon < Source::URL
     in _, _, /^@/ => username, *rest
       @username = username.delete_prefix("@")
 
+    # https://baraag.net/web/@loodncrood
+    in _, _, "web", /^@/ => username, *rest
+      @username = username.delete_prefix("@")
+
     # https://pawoo.net/users/esoraneko
     # https://pawoo.net/users/khurata/media
     in _, _, "users", username, *rest
diff --git a/test/unit/sources/mastodon_test.rb b/test/unit/sources/mastodon_test.rb
index b573107ec..cec38a3b8 100644
--- a/test/unit/sources/mastodon_test.rb
+++ b/test/unit/sources/mastodon_test.rb
@@ -130,6 +130,7 @@ module Sources
       assert(Source::URL.page_url?("https://baraag.net/web/statuses/102270656480174153"))
 
       assert(Source::URL.profile_url?("https://baraag.net/@danbooru"))
+      assert(Source::URL.profile_url?("https://baraag.net/@web/danbooru"))
       assert(Source::URL.profile_url?("https://baraag.net/web/accounts/107862785324786980"))
     end
   end