diff --git a/chrome/browser/browser_features.h b/chrome/browser/browser_features.h
index a9cbacc50c7b5..cf13309f8f308 100644
--- a/chrome/browser/browser_features.h
+++ b/chrome/browser/browser_features.h
@@ -35,6 +35,8 @@ BASE_DECLARE_FEATURE(kAllowUnmutedAutoplayForTWA);
 BASE_DECLARE_FEATURE(kAutocompleteActionPredictorConfidenceCutoff);
 BASE_DECLARE_FEATURE(kBookmarksTreeView);
 BASE_DECLARE_FEATURE(kBookmarkTriggerForPrerender2KillSwitch);
+BASE_DECLARE_FEATURE(kBrowserOsAlphaFeatures);
+BASE_DECLARE_FEATURE(kBrowserOsKeyboardShortcuts);
 BASE_DECLARE_FEATURE(kBookmarkTriggerForPreconnect);
 BASE_DECLARE_FEATURE(kBookmarkTriggerForPrefetch);
 BASE_DECLARE_FEATURE(kCertificateTransparencyAskBeforeEnabling);
