diff --git a/lib/msf/core/exploit/smb.rb b/lib/msf/core/exploit/smb.rb
index 271b4776cc..f374abdc28 100644
--- a/lib/msf/core/exploit/smb.rb
+++ b/lib/msf/core/exploit/smb.rb
@@ -100,7 +100,7 @@ module Exploit::Remote::SMB
 			# SendSPN will send an avp of type 9/SPN in the ntlmv2 client blob, this is mandatory on windows seven / 2008 r2 if 
 			# Microsoft network server : Server SPN target name validation level is set to <Required from client> or we get an STATUS_ACCESS_DENIED
 			#
-			OptBool.new('NTLM::SendSPN', [ true, 'Send an avp of type SPN in the ntlmv2 client Blob, this allow authentification on windows Seven/2008r2 when SPN is required', false]),
+			OptBool.new('NTLM::SendSPN', [ true, 'Send an avp of type SPN in the ntlmv2 client Blob, this allow authentification on windows Seven/2008r2 when SPN is required', true]),
 
 		], Msf::Exploit::Remote::SMB)