pam ejabberd-15.07

I'm trying to get pam authentication working with my new ejabberd-15.07 setup. When I start the server up the following error in the logs:

2015-08-26 12:52:53.713 [critical] <0.37.0>@ejabberd:exit_or_halt:133 failed to start application 'p1_pam': {error,
{"no such file or directory",
"p1_pam.app"}}

When I check in my current running ejabberd server(2.1.13) where pam works, I see the following beam files:

/usr/lib64/ejabberd/ebin/ejabberd_auth_pam.beam
/usr/lib64/ejabberd/ebin/epam.beam

When I look for the pam beam files in the ejabberd-15.07 setup I see the following beam file:

/opt/ejabberd-15.07/lib/ejabberd-15.07/ebin/ejabberd_auth_pam.beam

Now looking back at my error messages: "no such file or directory", that would make me think it's missing the epam.beam file? Is that a mistake or am I missing something else because my config for pam is setup exactly the same as on my old setup.