diff --git a/docs/_includes/sidebar.html b/docs/_includes/sidebar.html
index 235ce7357d..30adf87229 100644
--- a/docs/_includes/sidebar.html
+++ b/docs/_includes/sidebar.html
@@ -12,7 +12,7 @@
             {% if folderitem.output contains "web" %}
             {% if folderitem.external_url %}
             <li><a href="{{folderitem.external_url}}" target="_blank">{{folderitem.title}}</a></li>
-            {% elsif page.url == folderitem.url %}
+            {% elsif page.url == folderitem.url or page.sidebaractiveurl == folderitem.url %}
             <li class="active"><a href="{{folderitem.url | remove: "/"}}">{{folderitem.title}}</a></li>
             {% else %}
             <li><a href="{{folderitem.url | remove: "/"}}">{{folderitem.title}}</a></li>