maybe there's a better way...

I have a Ms Word 2013 with some VBA code that creates a custom menu under 'Addin' and then executes some code. The code works fine when I open the file individually, though I would like for the custom menu to be available in Ms Word under 'Addin' every time Ms Word is launched.

I tried saving the file in the startup folder and attach it as an Addin but no luck
Any suggestion?