diff --git a/lib/shell.lua b/lib/shell.lua
index 7f4033d..696cc26 100644
--- a/lib/shell.lua
+++ b/lib/shell.lua
@@ -12,7 +12,7 @@ end
 
 local function formatValue(v)
  if type(v) == "table" then
-  local w, rs = pcall(serial.serialize,v)
+  local w, rs = pcall(serial.serialize,v,true)
   if w then return rs end
  end
  return tostring(v)