diff --git a/scripts/x11-access.nse b/scripts/x11-access.nse
index 50ad0fdf5..78ba2639f 100644
--- a/scripts/x11-access.nse
+++ b/scripts/x11-access.nse
@@ -1,14 +1,14 @@
 -- NSE x11-access v1.3
 
-description = [[ 
+description = [[
 Checks if you're allowed to connect to the X server
 
 If the X server is listening on TCP port 6000+n (where n is the display
-number), it is possible to check if you're able to get connected to the 
+number), it is possible to check if you're able to get connected to the
 remote display by sending a X11 initial connection request.
 
-In reply, the success byte (0x00 or 0x01) will determine if you are in 
-the "xhost +" list. In this case, script will display the message: "X 
+In reply, the success byte (0x00 or 0x01) will determine if you are in
+the "xhost +" list. In this case, script will display the message: "X
 server access is granted".
 ]]
 
@@ -21,53 +21,47 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"default", "safe"}
 
 portrule = function( host, port )
-	return ((port.number >= 6000 and port.number <= 6009)
+        return ((port.number >= 6000 and port.number <= 6009)
                 or string.match(port.service, "^X11"))
-                -- If port.version.product is not equal to nil, version 
-                -- detection "-sV" has already done this X server test. 
-                and port.version.product == nil 
+                -- If port.version.product is not equal to nil, version
+                -- detection "-sV" has already done this X server test.
+                and port.version.product == nil
 end
 
 action = function(host, port)
 
-	local result, socket, try, catch
-	socket = nmap.new_socket()
-	catch = function() 
-		socket:close() 
-	end
+        local result, socket, try, catch
+        socket = nmap.new_socket()
+        catch = function()
+                socket:close()
+        end
 
-	try = nmap.new_try(catch)
-	try(socket:connect(host.ip, port.number))
+        try = nmap.new_try(catch)
+        try(socket:connect(host.ip, port.number))
 
-	-- Sending the network dump of a x11 connection request (captured
-	-- from the XOpenDisplay() function):
-	-- 
-        --    0x6c 0x00 0x0b 0x00 0x00 0x00 0x00 
+        -- Sending the network dump of a x11 connection request (captured
+        -- from the XOpenDisplay() function):
+        --
+        --    0x6c 0x00 0x0b 0x00 0x00 0x00 0x00
         --    0x00 0x00 0x00 0x00 0x00 0x00
-	try(socket:send("\108\000\011\000\000\000\000\000\000\000\000\000"))
+        try(socket:send("\108\000\011\000\000\000\000\000\000\000\000\000"))
 
-	-- According to the XOpenDisplay() sources, server answer is 
-	-- stored in a xConnSetupPrefix structure [1]. The function 
-	-- returns NULL if it does not succeed, and more precisely: When 
-	-- the success field of this structure (stored on 1 byte) is not 
-	-- equal to xTrue [2]. For more information, see the Xlib 
+        -- According to the XOpenDisplay() sources, server answer is
+        -- stored in a xConnSetupPrefix structure [1]. The function
+        -- returns NULL if it does not succeed, and more precisely: When
+        -- the success field of this structure (stored on 1 byte) is not
+        -- equal to xTrue [2]. For more information, see the Xlib
         -- programming Manual [3].
-	--
-	-- [1] xConnSetupPrefix structure is defined in X11/Xproto.h.
-	-- [2] xTrue = 0x01 according to X11/Xproto.h.
+        --
+        -- [1] xConnSetupPrefix structure is defined in X11/Xproto.h.
+        -- [2] xTrue = 0x01 according to X11/Xproto.h.
         -- [3] http://www.sbin.org/doc/Xlib
 
-	result = try(socket:receive_bytes(1))
+        result = try(socket:receive_bytes(1))
         socket:close()
 
         -- Check if first byte received is 0x01 (xTrue: succeed).
-        if 
-                string.match(result, "^\001") 
-        then
+        if string.match(result, "^\001") then
                 return "X server access is granted"
         end
- 
-        return 
 end
-
-