diff --git a/lib/assets/javascripts/_modules/anchored-headings.js b/lib/assets/javascripts/_modules/anchored-headings.js
index 1dad5a87..a1e8c118 100644
--- a/lib/assets/javascripts/_modules/anchored-headings.js
+++ b/lib/assets/javascripts/_modules/anchored-headings.js
@@ -11,7 +11,7 @@
       var $this = $(this)
       $this.addClass('anchored-heading')
       $this.prepend(
-        '<a href="#' + $this.attr('id') + '" class="anchored-heading__icon" aria-hidden="true"></a>'
+        '<a href="#' + $this.attr('id') + '" class="anchored-heading__icon" aria-hidden="true" tabindex="-1"></a>'
       )
     }
   }