diff --git a/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs b/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs
index 323d09c0e213..4cabcf4fa71e 100644
--- a/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs
+++ b/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs
@@ -121,8 +121,8 @@ public async Task<Dictionary<string, object>> BuildTwoFactorResultAsync(User use
 
         var twoFactorResultDict = new Dictionary<string, object>
         {
-            { "TwoFactorProviders", null },
-            { "TwoFactorProviders2", providers }, // backwards compatibility
+            { "TwoFactorProviders", providers.Keys }, // backwards compatibility
+            { "TwoFactorProviders2", providers },
         };
 
         // If we have email as a 2FA provider, we might need an SsoEmail2fa Session Token