diff --git a/frontend/apps/remark42/templates/400x400.jpeg b/frontend/apps/remark42/templates/400x400.jpeg
new file mode 100644
index 00000000..8e4ca3f2
Binary files /dev/null and b/frontend/apps/remark42/templates/400x400.jpeg differ
diff --git a/frontend/apps/remark42/templates/markdown-help.html b/frontend/apps/remark42/templates/markdown-help.html
index 01cd3e73..0cd1053d 100644
--- a/frontend/apps/remark42/templates/markdown-help.html
+++ b/frontend/apps/remark42/templates/markdown-help.html
@@ -348,7 +348,7 @@
           <p>If you want to embed images, this is how you do it:</p>
           <pre>![Image of my cat](https://placekitten.com/400/400)</pre>
           <p>
-            <img src="https://placekitten.com/400/400" width="400" height="400" alt="" />
+            <img src="400x400.jpeg" width="400" height="400" alt="" />
           </p>
 
           <h2 id="Code">Code</h2>