diff --git a/js/src/admin/AdminApplication.js b/js/src/admin/AdminApplication.js
index bc6426094..61fcbeb03 100644
--- a/js/src/admin/AdminApplication.js
+++ b/js/src/admin/AdminApplication.js
@@ -33,6 +33,9 @@ export default class AdminApplication extends Application {
     m.mount(document.getElementById('header-secondary'), HeaderSecondary);
     m.mount(document.getElementById('admin-navigation'), AdminNav);
 
+    // With mithril 0.2.x, mithril redirects to the route with the hash automatically.
+    // With 2.x, it does not do that, so it doesn't display the home route in the admin.
+    // This code makes sure that going to https://example.com/admin takes us to the right page.
     if (!document.location.hash) document.location.hash = '#/';
 
     m.route.prefix = '#';