diff --git a/layouts/_default/_markup/render-codeblock-mermaid.html b/layouts/_default/_markup/render-codeblock-mermaid.html
index 15e4fdfbb..59641551c 100644
--- a/layouts/_default/_markup/render-codeblock-mermaid.html
+++ b/layouts/_default/_markup/render-codeblock-mermaid.html
@@ -1,4 +1,4 @@
 <div class="mermaid">
-  {{- .Code | safeHTML }}
+  {{- .Inner | safeHTML }}
 </div>
 {{ .Page.Store.Set "hasMermaid" true }}