diff --git a/lib/face_control/checkers/rubocop.rb b/lib/face_control/checkers/rubocop.rb
index ed4b7da..114b930 100644
--- a/lib/face_control/checkers/rubocop.rb
+++ b/lib/face_control/checkers/rubocop.rb
@@ -61,7 +61,7 @@ def text(offense, file)
 
       def style_guide_url(offense)
         cop_name = offense['cop_name']
-        cop_config = ::RuboCop::ConfigLoader.default_configuration[cop_name]
+        cop_config = ::RuboCop::ConfigLoader.default_configuration[cop_name] || {}
         cop_config['StyleGuide']
       end