diff --git a/config.toml b/config.toml
index a7b4b65..c97f0a7 100644
--- a/config.toml
+++ b/config.toml
@@ -16,6 +16,11 @@ highlight_code = true
 highlight_theme = "css"
 
 [extra]
+
+# Enable JavaScript theme toggler for dark/light mode (and automatic switching).
+# The default setting is the light theme.
+theme_switcher = true
+
 # Date format used when listing posts (main page, /blog section, tag posts list…)
 # Default is "6th July 2049".
 long_date_format = "%d %B %Y"
diff --git a/templates/partials/nav.html b/templates/partials/nav.html
index 78a695a..33418bb 100644
--- a/templates/partials/nav.html
+++ b/templates/partials/nav.html
@@ -12,12 +12,14 @@
                         }}</a>
                     {% endfor %}
                 </div>
+                {%- if config.extra.theme_switcher == true -%}
                 <label class="theme-switcher" for="themeswitch">
                     <input type="checkbox" id="themeswitch">
                     <div class="switch">
                         <img alt="set dark theme" class="moon" src="{{ config.base_url }}/menu_icon/moon.svg">
                         <img alt="set light theme" class="sun" src="{{ config.base_url }}/menu_icon/sun.svg">
                     </div>
+                {%- endif -%}
                 </label>
             </div>
         {% endif %}