diff --git a/src/infrastructure/markup/remarkup/__tests__/remarkup/link-alternate.txt b/src/infrastructure/markup/remarkup/__tests__/remarkup/link-alternate.txt
--- a/src/infrastructure/markup/remarkup/__tests__/remarkup/link-alternate.txt
+++ b/src/infrastructure/markup/remarkup/__tests__/remarkup/link-alternate.txt
@@ -3,7 +3,7 @@
 x[0][1](**ptr);
 
 ~~~~~~~~~~
-<p><a href="http://www.example.com/" class="remarkup-link" target="_blank" rel="noreferrer">Example</a></p>
+<p><a href="http://www.example.com/" class="remarkup-link remarkup-link-ext" target="_blank" rel="noreferrer">Example</a></p>
 
 <p>x[0][1](**ptr);</p>
 ~~~~~~~~~~