1 files changed, 3 insertions, 2 deletions
diff --git a/src/DotNetOpenAuth.OpenId.RelyingParty/OpenId/ChannelElements/OpenIdRelyingPartyMessageFactory.cs b/src/DotNetOpenAuth.OpenId.RelyingParty/OpenId/ChannelElements/OpenIdRelyingPartyMessageFactory.cs
index 4756c6e..9ec6c53 100644
--- a/src/DotNetOpenAuth.OpenId.RelyingParty/OpenId/ChannelElements/OpenIdRelyingPartyMessageFactory.cs
+++ b/src/DotNetOpenAuth.OpenId.RelyingParty/OpenId/ChannelElements/OpenIdRelyingPartyMessageFactory.cs
@@ -95,13 +95,14 @@ namespace DotNetOpenAuth.OpenId.ChannelElements {
 					// This is a special recognized error case that we create a special message for.
 					message = new AssociateUnsuccessfulResponse(protocol.Version, associateRequest);
 				} else if (message == null) {
+#if !ExcludeDiffieHellman
 					var associateDiffieHellmanRequest = request as AssociateDiffieHellmanRequest;
-					var associateUnencryptedRequest = request as AssociateUnencryptedRequest;
-
 					if (associateDiffieHellmanRequest != null) {
 						message = new AssociateDiffieHellmanRelyingPartyResponse(protocol.Version, associateDiffieHellmanRequest);
 					}
+#endif
 
+					var associateUnencryptedRequest = request as AssociateUnencryptedRequest;
 					if (associateUnencryptedRequest != null) {
 						message = new AssociateUnencryptedResponseRelyingParty(protocol.Version, associateUnencryptedRequest);
 					}