diff --git a/src/js/background.js b/src/js/background.js
index c8de8f409..d8ae29787 100644
--- a/src/js/background.js
+++ b/src/js/background.js
@@ -57,7 +57,6 @@ return {
         colorBlindFriendly: false,
         contextMenuEnabled: true,
         dynamicFilteringEnabled: true,
-        experimentalEnabled: false,
         externalLists: defaultExternalLists,
         firewallPaneMinimized: true,
         hyperlinkAuditingDisabled: true,
diff --git a/src/js/start.js b/src/js/start.js
index 440ba106d..b8f364532 100644
--- a/src/js/start.js
+++ b/src/js/start.js
@@ -166,10 +166,6 @@ var onUserSettingsReady = function(fetched) {
     µb.assets.autoUpdate = userSettings.autoUpdate;
     µb.assets.autoUpdateDelay = µb.updateAssetsEvery;
 
-    // https://github.com/chrisaljoudi/uBlock/issues/540
-    // Disabling local mirroring for the time being
-    userSettings.experimentalEnabled = false;
-
     vAPI.browserSettings.set({
         'hyperlinkAuditing': !userSettings.hyperlinkAuditingDisabled,
         'prefetching': !userSettings.prefetchingDisabled,
diff --git a/src/js/ublock.js b/src/js/ublock.js
index 992bec760..9466ad071 100644
--- a/src/js/ublock.js
+++ b/src/js/ublock.js
@@ -282,8 +282,6 @@ var matchWhitelistDirective = function(url, hostname, directive) {
     case 'contextMenuEnabled':
         this.contextMenu.update(null);
         break;
-    case 'experimentalEnabled':
-        break;
     case 'hyperlinkAuditingDisabled':
         vAPI.browserSettings.set({ 'hyperlinkAuditing': !value });
         break;