diff --git a/coder_sniffer/Drupal/ruleset.xml b/coder_sniffer/Drupal/ruleset.xml
index 78f0f71d8b4ecaad2d6f3a9f8b3196939fe621a0..e7a95494fe00c24e438fc9b8b2f6b20a9ab0d404 100644
--- a/coder_sniffer/Drupal/ruleset.xml
+++ b/coder_sniffer/Drupal/ruleset.xml
@@ -297,4 +297,7 @@
  <exclude-pattern>*/\.svn/*</exclude-pattern>
  <exclude-pattern>*/\.hg/*</exclude-pattern>
  <exclude-pattern>*/\.bzr/*</exclude-pattern>
+ 
+ <!-- Ignore minified CSS files.-->
+ <exclude-pattern>*\.min\.css$</exclude-pattern>
 </ruleset>