diff --git a/themes/mytheme/templates/partials/sidebar.html.twig b/themes/mytheme/templates/partials/sidebar.html.twig
index 77ffa51d8b..15466c62bc 100644
--- a/themes/mytheme/templates/partials/sidebar.html.twig
+++ b/themes/mytheme/templates/partials/sidebar.html.twig
@@ -11,10 +11,12 @@
 
 {% if config.get('plugins.page-toc.active') or attribute(page.header, 'page-toc').active %}
 <div class="page-toc">
-    {% set table_of_contents = toc(page.content) %}
-    {% if table_of_contents is not empty %}
-    <h4>Obsah</h4>
-    {{ table_of_contents }}
+    {% if page.content is not empty %}
+        {% set table_of_contents = toc(page.content) %}
+        {% if table_of_contents is not empty %}
+        <h4>Obsah</h4>
+        {{ table_of_contents }}
+        {% endif %}
     {% endif %}
 </div>
 {% endif %}