diff --git a/src/elements/emby-checkbox/emby-checkbox.js b/src/elements/emby-checkbox/emby-checkbox.js
index af611917ab..b22ff151af 100644
--- a/src/elements/emby-checkbox/emby-checkbox.js
+++ b/src/elements/emby-checkbox/emby-checkbox.js
@@ -52,7 +52,7 @@ import 'registerElement';
 
         const labelTextElement = labelElement.querySelector('span');
 
-        const outlineClass = 'checkboxOutline';
+        let outlineClass = 'checkboxOutline';
 
         const customClass = this.getAttribute('data-outlineclass');
         if (customClass) {