diff --git a/config.toml b/config.toml
index 59069f2..7b843dd 100644
--- a/config.toml
+++ b/config.toml
@@ -20,5 +20,5 @@ easydocs_logo_always_clickable = false
 #  - This is not portable and only works with a specific local folder
 easydocs_uglyurls = false
 
-# Controls how many headings are needed on a page before the headings show in the navigation on the left
-easydocs_heading_threshold = 4
\ No newline at end of file
+# Minimum number of headings needed on a page before the headings show in the navigation on the left. Defaults to 5.
+easydocs_heading_threshold = 5
\ No newline at end of file
diff --git a/templates/index.html b/templates/index.html
index 0c96594..15c2af1 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -94,7 +94,15 @@
                                     {% endfor -%}
 
                                     {# Output headers if above threshold #}
-                                    {% if header_count > config.extra.easydocs_heading_threshold -%}
+                                    {% if not config.extra.easydocs_heading_threshold -%}
+                                        {# Undefined or 0 unable to find a way to differnciate between 0 and undefined.
+                                         1 is already including any headings so is not 0 not needed #}
+                                        {% set _threshold = 5 -%}
+                                    {% else %}
+                                        {% set _threshold = config.extra.easydocs_heading_threshold -%}
+                                    {% endif -%}
+
+                                    {% if header_count >= _threshold -%}
                                         <ul id="toc">
                                             {% for h2 in page.toc -%}
                                                 <li><a href="