diff --git a/scripts/lltd-discovery.nse b/scripts/lltd-discovery.nse
index f36a33817..9c7d46c28 100644
--- a/scripts/lltd-discovery.nse
+++ b/scripts/lltd-discovery.nse
@@ -130,7 +130,7 @@ local parseHello = function(data)
       local l = tlv:byte(p)
 
       p = p + 1
-      local v = tlv:sub(p,p+l)
+      local v = tlv:sub(p,p+l-1)
 
       if t == 0x01 then
         -- Host ID (MAC Address)