diff --git a/_includes/toc.html b/_includes/toc.html
index 5aa1af9..59ea536 100644
--- a/_includes/toc.html
+++ b/_includes/toc.html
@@ -77,7 +77,7 @@
     {% assign maxHeader = include.h_max | default: 6 %}
     {% assign nodes = include.html | strip | split: '<h' %}
 
-    {% assign firstHeader = false %}
+    {% assign firstHeader = true %}
     {% assign currLevel = 0 %}
     {% assign lastLevel = 0 %}