How does msgpack differ in perl from node.js

Does anyone have a clue why perl's MessagePack gives different results from that in Node.js .

I am trying to unpack a msgpack string that was created using Perl's Message Pack and it doesn't work

Example: Array ["a","b","c","d","f"]

packing it in Perl gives : ��a�b�c�d�e�f

packing it in node.js (using various modules) : ¡a¡b¡c¡d¡f

Does anyone have a clue