diff --git a/client/utils.js b/client/utils.js
index 4436c3b..16f707b 100644
--- a/client/utils.js
+++ b/client/utils.js
@@ -9,7 +9,7 @@ function initUmami(peertubeHelpers) {
       const umamiUrl = s['url']
       const siteId = s['site-id']
 
-      document.getElementByTagName('head')[0].insertAdjacentHTML('beforeend', `<script defer src="${umamiUrl}/script.js" data-website-id="${siteId}"></script>`)
+      document.getElementsByTagName('head')[0].insertAdjacentHTML('beforeend', `<script defer src="${umamiUrl}/script.js" data-website-id="${siteId}"></script>`)
 
       return true
     })