diff --git a/locales/nn-NO/browser/browser/preferences/zen-preferences.ftl b/locales/nn-NO/browser/browser/preferences/zen-preferences.ftl
index bc17cdc1c..7b1b3be8f 100644
--- a/locales/nn-NO/browser/browser/preferences/zen-preferences.ftl
+++ b/locales/nn-NO/browser/browser/preferences/zen-preferences.ftl
@@ -44,8 +44,6 @@ zen-tabs-unloader-enabled =
     .label = Enable Tab Unloader
 zen-look-and-feel-compact-toolbar-themed = 
     .label = Use themed background for compact toolbar
-zen-look-and-feel-compact-sidebar-themed = 
-    .label = Use themed background for compact sidebar
 zen-workspace-continue-where-left-off = 
     .label = Continue where you left off
 pane-zen-pinned-tab-manager-title = Pinned Tabs