diff --git a/_includes/refactor-content.html b/_includes/refactor-content.html
index 83329b3..6cfbc1b 100644
--- a/_includes/refactor-content.html
+++ b/_includes/refactor-content.html
@@ -214,7 +214,7 @@
 
       {% assign left = snippet | split: mark_end | first %}
       {% assign right = snippet | slice: left.size, snippet.size %}
-      {% assign left = left | replace: '">', '"><span class="mr-2">' | append: '</span>' %}
+      {% assign left = left | replace_first: '">', '"><span class="mr-2">' | append: '</span>' %}
 
       {% assign _new_content = _new_content | append: mark_start
           | append: left | append: anchor | append: right