diff --git a/src/js/storage.js b/src/js/storage.js
index f068cd385..a3994b5c6 100644
--- a/src/js/storage.js
+++ b/src/js/storage.js
@@ -957,6 +957,7 @@ self.addEventListener('hiddenSettingsChanged', ( ) => {
     [ 'env_chromium', 'chromium' ],
     [ 'env_edge', 'edge' ],
     [ 'env_firefox', 'firefox' ],
+    [ 'env_legacy', 'legacy' ],
     [ 'env_mobile', 'mobile' ],
     [ 'env_safari', 'safari' ],
     [ 'cap_html_filtering', 'html_filtering' ],