diff --git a/style.scss b/style.scss
index f8b6aa4..e9bd8bb 100644
--- a/style.scss
+++ b/style.scss
@@ -139,7 +139,7 @@ h2, h3, h4, h5, h5 {
             width: 2em;
             text-align: center;
             counter-increment: item;
-            content: counter(item) ".";
+            content: "(" counter(item, lower-alpha) ")";
         }
     }
 }