diff --git a/scripts/dns-zone-transfer.nse b/scripts/dns-zone-transfer.nse
index 8264f0864..0210b2c0f 100644
--- a/scripts/dns-zone-transfer.nse
+++ b/scripts/dns-zone-transfer.nse
@@ -426,7 +426,7 @@ function add_zone_info(response)
     offset = parse_records(add_answers, data, RR, offset)
   end
 
-  local outtab, nhosts = tab.new(2), 0
+  local outtab, nhosts = tab.new(), 0
   local newhosts_count, status, ret = 0, false
 
   tab.nextrow(outtab)
@@ -588,7 +588,7 @@ action = function(host, port)
         return stdnse.format_output(true, ret)
     -- dump axfr results
     else
-        local table = tab.new(3)
+        local table = tab.new()
         local status, ret = dump_zone_info(table, response_str)
         if not status then
             return stdnse.format_output(false, ret)
diff --git a/scripts/firewalk.nse b/scripts/firewalk.nse
index fcd0fd45c..b8ab40751 100644
--- a/scripts/firewalk.nse
+++ b/scripts/firewalk.nse
@@ -391,7 +391,7 @@ end
 -- @param forwarded array of ports we discovered as forwarded, one row per protocol
 -- @return the report string
 local function report(tested, forwarded)
-  local output = tab.new(2)
+  local output = tab.new()
 
   tab.add(output, 1, "PROTOCOL")
   tab.add(output, 2, "FORWARDED PORTS")
diff --git a/scripts/nfs-ls.nse b/scripts/nfs-ls.nse
index 0cbcc20d9..db7f2fb9a 100644
--- a/scripts/nfs-ls.nse
+++ b/scripts/nfs-ls.nse
@@ -207,7 +207,7 @@ local function nfs_ls(nfs, mount, results, access)
 end
 
 local function report(nfs, table)
-  local outtab, time = tab.new(6), ""
+  local outtab, time = tab.new(), ""
 
   if nfs.time == "mtime" then
     time = "MODIFICATION TIME"
diff --git a/scripts/nfs-statfs.nse b/scripts/nfs-statfs.nse
index 86e617928..e7e70f163 100644
--- a/scripts/nfs-statfs.nse
+++ b/scripts/nfs-statfs.nse
@@ -84,7 +84,7 @@ local function report(nfs, tables)
   end
 
   if nfs.version == 2 then
-    outtab = tab.new(6)
+    outtab = tab.new()
     tab.nextrow(outtab)
     tab.addrow(outtab, tab_filesys, tab_size, tab_used,
                        tab_avail, tab_use, tab_bs)
@@ -94,7 +94,7 @@ local function report(nfs, tables)
                          t.used, t.available, t.use, t.bsize)
     end
   elseif nfs.version == 3 then
-    outtab = tab.new(7)
+    outtab = tab.new()
     tab.nextrow(outtab)
     tab.addrow(outtab, tab_filesys, tab_size, tab_used,
                        tab_avail, tab_use, tab_maxfs, tab_linkmax)
diff --git a/scripts/qscan.nse b/scripts/qscan.nse
index cb13e7460..3e20f4230 100644
--- a/scripts/qscan.nse
+++ b/scripts/qscan.nse
@@ -231,7 +231,7 @@ end
 -- @return Output report
 local report = function(stats)
 	local j
-	local outtab = tab.new(5)
+	local outtab = tab.new()
 
 	tab.add(outtab, 1, "PORT")
 	tab.add(outtab, 2, "FAMILY")