diff --git a/app/assets/stylesheets/zammad.scss b/app/assets/stylesheets/zammad.scss
index 63be91e10..391958221 100644
--- a/app/assets/stylesheets/zammad.scss
+++ b/app/assets/stylesheets/zammad.scss
@@ -2879,6 +2879,11 @@ footer {
       line-height: 84px;
     }
   }
+
+  .icon {
+    width: 100%;
+    height: 100%;
+  }
 }
 
 .sidebar {