--- a/util/sasl/scram.lua	Sun Feb 06 13:39:32 2011 +0100
+++ b/util/sasl/scram.lua	Mon Feb 07 13:24:42 2011 +0100
@@ -249,7 +249,7 @@
 		registerMechanism("SCRAM-"..hash_name, {"plain", "scram_"..(hashprep(hash_name))}, scram_gen(hash_name:lower(), hash, hmac_hash));
 		
 		-- register channel binding equivalent
-		registerMechanism("SCRAM-"..hash_name.."-PLUS", {"plain", "scram_"..(hashprep(hash_name))}, scram_gen(hash_name:lower(), hash, hmac_hash));
+		registerMechanism("SCRAM-"..hash_name.."-PLUS", {"plain", "scram_"..(hashprep(hash_name))}, scram_gen(hash_name:lower(), hash, hmac_hash), {"tls-unique"});
 	end
 
 	registerSCRAMMechanism("SHA-1", sha1, hmac_sha1);