diff --git a/src/Core/Constants.cs b/src/Core/Constants.cs
index b4ddd73409..f4bafd8cfb 100644
--- a/src/Core/Constants.cs
+++ b/src/Core/Constants.cs
@@ -166,6 +166,8 @@ public static class FeatureFlagKeys
     public const string RecordInstallationLastActivityDate = "installation-last-activity-date";
     public const string EnablePasswordManagerSyncAndroid = "enable-password-manager-sync-android";
     public const string EnablePasswordManagerSynciOS = "enable-password-manager-sync-ios";
+    public const string SingleTapPasskeyCreation = "single-tap-passkey-creation";
+    public const string SingleTapPasskeyAuthentication = "single-tap-passkey-authentication";
 
     public static List<string> GetAllKeys()
     {