1 files changed, 3 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OpenId.Provider/OpenId/Messages/CheckAuthenticationResponseProvider.cs b/src/DotNetOpenAuth.OpenId.Provider/OpenId/Messages/CheckAuthenticationResponseProvider.cs
index 3853693..8f00394 100644
--- a/src/DotNetOpenAuth.OpenId.Provider/OpenId/Messages/CheckAuthenticationResponseProvider.cs
+++ b/src/DotNetOpenAuth.OpenId.Provider/OpenId/Messages/CheckAuthenticationResponseProvider.cs
@@ -2,6 +2,9 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using DotNetOpenAuth.OpenId.Provider;
+using System.Diagnostics.Contracts;
+using DotNetOpenAuth.OpenId.ChannelElements;
 
 namespace DotNetOpenAuth.OpenId.Messages {
 	class CheckAuthenticationResponseProvider : CheckAuthenticationResponse {