diff --git a/config/default.yml b/config/default.yml
index 64170324a9d..e81ea77480f 100644
--- a/config/default.yml
+++ b/config/default.yml
@@ -2561,6 +2561,7 @@ Naming/InclusiveLanguage:
       AllowedRegex:
         - 'Master of None'
         - 'Master Boot Record'
+        - 'Mastercard'        
     slave:
       Suggestions: ['replica', 'secondary', 'follower']