diff --git a/src/Maple.js b/src/Maple.js
index <HASH>..<HASH> 100644
--- a/src/Maple.js
+++ b/src/Maple.js
@@ -113,7 +113,7 @@ import events    from './helpers/Events.js';
 
                 mutations.forEach((mutation) => {
 
-                    var addedNodes = utility.toArray(mutation.addedNodes);
+                    let addedNodes = utility.toArray(mutation.addedNodes);
 
                     addedNodes.forEach((node) => {
 
diff --git a/src/helpers/Utility.js b/src/helpers/Utility.js
index <HASH>..<HASH> 100644
--- a/src/helpers/Utility.js
+++ b/src/helpers/Utility.js
@@ -227,7 +227,7 @@ export default (function main($document) {
          */
         isHTMLImport(htmlElement) {
 
-            var isInstance  = htmlElement instanceof HTMLLinkElement,
+            let isInstance  = htmlElement instanceof HTMLLinkElement,
                 isImport    = String(htmlElement.getAttribute('rel')).toLowerCase() === 'import',
                 hasHrefAttr = htmlElement.hasAttribute('href'),
                 hasTypeHtml = String(htmlElement.getAttribute('type')).toLowerCase() === 'text/html';
Changed from 'var' to 'let' :zzz: