diff --git a/docs/configuration.md b/docs/configuration.md
index f4646cb..d39f370 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -62,7 +62,7 @@ const cssFile = document.querySelector('[rel="stylesheet"]');
 const originalCssRef = cssFile.getAttribute('href');
 const darkModeCssRef = originalCssRef.replace('just-the-docs.css', 'dark-mode-preview.css');
 
-addEvent(toggleDarkMode, 'click', function(){
+jtd.addEvent(toggleDarkMode, 'click', function(){
   if (cssFile.getAttribute('href') === originalCssRef) {
     cssFile.setAttribute('href', darkModeCssRef);
   } else {
diff --git a/docs/customization.md b/docs/customization.md
index 11d4526..de4ea02 100644
--- a/docs/customization.md
+++ b/docs/customization.md
@@ -40,7 +40,7 @@ const cssFile = document.querySelector('[rel="stylesheet"]');
 const originalCssRef = cssFile.getAttribute('href');
 const darkModeCssRef = originalCssRef.replace('just-the-docs.css', 'dark-mode-preview.css');
 
-addEvent(toggleDarkMode, 'click', function(){
+jtd.addEvent(toggleDarkMode, 'click', function(){
   if (cssFile.getAttribute('href') === originalCssRef) {
     cssFile.setAttribute('href', darkModeCssRef);
   } else {