diff --git a/locales/is/browser/browser/preferences/zen-preferences.ftl b/locales/is/browser/browser/preferences/zen-preferences.ftl
index 2886d7fb5..3980299d6 100644
--- a/locales/is/browser/browser/preferences/zen-preferences.ftl
+++ b/locales/is/browser/browser/preferences/zen-preferences.ftl
@@ -314,3 +314,4 @@ zen-devtools-toggle-storage-shortcut = Víxla geymslurými af/á
 zen-devtools-toggle-dom-shortcut = Víxla DOM af/á
 zen-devtools-toggle-accessibility-shortcut = Víxla auðvelduðu aðgengi af/á
 zen-close-all-unpinned-tabs-shortcut = Loka öllum ófestum flipum
+zen-new-unsynced-window-shortcut = Nýr ósamstilltur gluggi