diff --git a/scripts/dns-recursion.nse b/scripts/dns-recursion.nse
index 6316c2f3e..f10deaf4b 100644
--- a/scripts/dns-recursion.nse
+++ b/scripts/dns-recursion.nse
@@ -1,4 +1,3 @@
-
 description = [[
 Checks if a DNS server allows queries for third-party names.
 
@@ -26,20 +25,20 @@ portrule = shortport.portnumber(53, "udp")
 action = function(host, port)
 
     -- generate dns query, Transaction-ID 0xdead, www.wikipedia.org (type A, class IN)
-	local request = string.char(0xde, 0xad, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03) ..  "www" .. string.char(0x09) .. "wikipedia" .. string.char(0x03) ..  "org" .. string.char(0x00, 0x00, 0x01, 0x00, 0x01)
+    local request = string.char(0xde, 0xad, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03) ..  "www" .. string.char(0x09) .. "wikipedia" .. string.char(0x03) ..  "org" .. string.char(0x00, 0x00, 0x01, 0x00, 0x01)
 
-	local status, result = comm.exchange(host, port, request, {proto="udp"})
+    local status, result = comm.exchange(host, port, request, {proto="udp"})
 
-	if not status then
-		return
-	end
+    if not status then
+        return
+    end
 
     -- parse response for dns flags
     if (bit.band(string.byte(result,3), 0x80) == 0x80
-    and bit.band(string.byte(result,4), 0x85) == 0x80)
+        and bit.band(string.byte(result,4), 0x85) == 0x80)
     then
-		return "Recursion appears to be enabled"
+        return "Recursion appears to be enabled"
     end
 
-	return
+    return
 end