diff --git a/negotiate_message.go b/negotiate_message.go
index e466a98..1325606 100644
--- a/negotiate_message.go
+++ b/negotiate_message.go
@@ -23,7 +23,9 @@ var defaultFlags = negotiateFlagNTLMSSPNEGOTIATETARGETINFO |
 	negotiateFlagNTLMSSPNEGOTIATE56 |
 	negotiateFlagNTLMSSPNEGOTIATE128 |
 	negotiateFlagNTLMSSPNEGOTIATEUNICODE |
-	negotiateFlagNTLMSSPNEGOTIATEEXTENDEDSESSIONSECURITY
+	negotiateFlagNTLMSSPNEGOTIATEEXTENDEDSESSIONSECURITY |
+	negotiateFlagNTLMSSPNEGOTIATENTLM |
+	negotiateFlagNTLMSSPNEGOTIATEALWAYSSIGN
 
 //NewNegotiateMessage creates a new NEGOTIATE message with the
 //flags that this package supports.