diff --git a/apps/settings/elements/addon_details.html b/apps/settings/elements/addon_details.html
index c15060322207..f2bbf08fc5f8 100644
--- a/apps/settings/elements/addon_details.html
+++ b/apps/settings/elements/addon_details.html
@@ -2,7 +2,7 @@
   <template>
 
     <gaia-header action="back" data-href="#addons" hidden>
-      <h1 class="addon-details-header" data-l10n-id="addon-details-header"></h1>
+      <h1 class="addon-details-header" data-l10n-id="addon-details-header1"></h1>
     </gaia-header>
 
     <div class="addon-details-body" hidden>
diff --git a/apps/settings/js/panels/addon_details/addon_details.js b/apps/settings/js/panels/addon_details/addon_details.js
index 9f487c50f842..c54d4c11a74b 100644
--- a/apps/settings/js/panels/addon_details/addon_details.js
+++ b/apps/settings/js/panels/addon_details/addon_details.js
@@ -124,9 +124,9 @@ define(function(require) {
     var l10n = navigator.mozL10n;
 
     l10n.setAttributes(
-      this._elements.header, 'addon-details-header', appnameArgs);
+      this._elements.header, 'addon-details-header1', appnameArgs);
     l10n.setAttributes(
-      this._elements.name, 'addon-details-header', appnameArgs);
+      this._elements.name, 'addon-details-header1', appnameArgs);
     // Put text description for an icon
     l10n.setAttributes(this._elements.icon, 'accessible-app-icon', appnameArgs);
   };
diff --git a/apps/settings/locales/settings.en-US.properties b/apps/settings/locales/settings.en-US.properties
index 324549a8b899..90868f8b13a3 100644
--- a/apps/settings/locales/settings.en-US.properties
+++ b/apps/settings/locales/settings.en-US.properties
@@ -1440,7 +1440,7 @@ accessible-app-icon.ariaLabel=Icon for {{ appName }} app
 addon=Add-on
 addons=Add-ons
 addons-header={{addons}}
-addon-details-header={{ appName }}
+addon-details-header1={{ appName }}
 addon-enable=Enable Add-on
 addon-description-header=Description
 addon-developer-name={{ developerName }}