diff --git a/src/Core/Constants.cs b/src/Core/Constants.cs
index 457b47d458..e7685891ad 100644
--- a/src/Core/Constants.cs
+++ b/src/Core/Constants.cs
@@ -147,7 +147,8 @@ public static class FeatureFlagKeys
         {
             { TrustedDeviceEncryption, "true" },
             { Fido2VaultCredentials, "true" },
-            { DuoRedirect, "true" }
+            { DuoRedirect, "true" },
+            { FlexibleCollectionsSignup, "true" }
         };
     }
 }