diff --git a/mkdocs.yml b/mkdocs.yml
index 626788f..0d48739 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -17,6 +17,7 @@ extra_javascript:
   - js/snap.svg-min.js
   - js/underscore-min.js
   - js/sequence-diagram-min.js
+  - js/diagram.js
 markdown_extensions:
   - abbr
   - admonition