diff --git a/SkinAether.php b/SkinAether.php
index 78d2a6f04d0d0c587e462baad9c4e3abff1c51b9..941f9272a0172e252e9b51e643fa4d450230d11c 100644
--- a/SkinAether.php
+++ b/SkinAether.php
@@ -56,6 +56,7 @@ class SkinAether extends SkinTemplate {
 
         $out->addStyle( $urlPackage->getUrl('aether-devel/version/bootstrap.css'), 'all' );
         $out->addStyle( $urlPackage->getUrl('aether-devel/version/aether-mediawiki.css'), 'all' );
+        $out->addStyle( $urlPackage->getUrl('aether-devel/version/aether-sidebar.css'), 'all' );
     }
 
     /**