Hotfix for typo

_includes/toc.html

@@ -84,7 +84,7 @@
 {{ space }}{{ listModifier }} {{ listItemClass }} [{{ heading_body | replace: "|", "\|" }}]({% if include.baseurl %}{{ include.baseurl }}{% endif %}#{{ html_id }}){% if include.anchor_class %}{:.{{ include.anchor_class }}}{% endif %}{% endcapture %}
     {% endfor %}
 
-    {% if include.class and include.item_class != blank %}
+    {% if include.class and include.class != blank %}
         {% capture my_toc %}{:.{{ include.class }}}
 {{ my_toc | lstrip }}{% endcapture %}
     {% endif %}