diff --git a/Library/Homebrew/style.rb b/Library/Homebrew/style.rb
index 32ffd11ac0..8cc3a86238 100644
--- a/Library/Homebrew/style.rb
+++ b/Library/Homebrew/style.rb
@@ -126,10 +126,15 @@ module Homebrew
       end
 
       files&.map!(&:expand_path)
+      config, = files.flat_map do |f|
+        tap = f.to_s[%r{.+/homebrew-[^/]+}]
+        Pathname.glob("#{tap}/.rubocop.yml")
+      end
+
       if files.blank? || files == [HOMEBREW_REPOSITORY]
         files = [HOMEBREW_LIBRARY_PATH]
       elsif files.none? { |f| f.to_s.start_with? HOMEBREW_LIBRARY_PATH }
-        config = if files.any? { |f| (f/"spec").exist? }
+        config ||= if files.any? { |f| (f/"spec").exist? }
           HOMEBREW_LIBRARY/".rubocop_rspec.yml"
         else
           HOMEBREW_LIBRARY/".rubocop.yml"