diff --git a/Library/Homebrew/cask/audit.rb b/Library/Homebrew/cask/audit.rb
index 0297849a96..77deaf1a23 100644
--- a/Library/Homebrew/cask/audit.rb
+++ b/Library/Homebrew/cask/audit.rb
@@ -868,7 +868,7 @@ module Cask
 
     sig { returns(T::Boolean) }
     def bad_sourceforge_url?
-      bad_url_format?(/sourceforge/,
+      bad_url_format?(%r{((downloads|\.dl)\.|//)sourceforge},
                       [
                         %r{\Ahttps://sourceforge\.net/projects/[^/]+/files/latest/download\Z},
                         %r{\Ahttps://downloads\.sourceforge\.net/(?!(project|sourceforge)/)},