diff --git a/browser/components/preferences/main.inc.xhtml b/browser/components/preferences/main.inc.xhtml
index 4c2637db10b7ad5d253d9588be3610c1ec5ad330..b7861f7888b0d3f9abd5249f8356e6b9b5c3005f 100644
--- a/browser/components/preferences/main.inc.xhtml
+++ b/browser/components/preferences/main.inc.xhtml
@@ -163,7 +163,7 @@
 </hbox>
 
 <!-- Website appearance -->
-<groupbox id="webAppearanceGroup" data-category="paneGeneral" hidden="true">
+<groupbox id="webAppearanceGroup" data-category="paneZenLooks" hidden="true">
   <html:h2 data-l10n-id="preferences-web-appearance-header"/>
   <html:div id="webAppearanceSettings">
     <description class="description-deemphasized" data-l10n-id="preferences-web-appearance-description"/>
@@ -369,6 +369,7 @@
               languages-customize-add.label,
             " />
   </hbox>
+  <label class="zenLanguageWarning-label"><html:b data-l10n-id="zen-warning-language"/></label>
 
   <checkbox id="useSystemLocale" hidden="true"
             data-l10n-id="use-system-locale"