diff --git a/layouts/_default/markup/render-codeblock-mermaid.html b/layouts/_default/markup/render-codeblock-mermaid.html
deleted file mode 100644
index 94ea0ca..0000000
--- a/layouts/_default/markup/render-codeblock-mermaid.html
+++ /dev/null
@@ -1,4 +0,0 @@
-<pre class="mermaid">
-  {{- .Inner | safeHTML }}
-</pre>
-{{ .Page.Store.Set "hasMermaid" true }}