psafe3 (-m 5200)

I've been trying different hash types and have had some success, but still struggling with the psafe3 hash.

I donwloaded the hashcat.psafe3 sample from the website, which I can open using PasswordSafe and a password of 'hashcat', so far so good.

But when I try to confirm using oclhashcat (1.31) with the following command line, it fails to resolve? The file passwords.txt contains the word 'hashcat' so I'm confused?

oclhashcat64.exe" -m 5200 -a 0 hashcat.psafe3 passwords.txt

Can someone tell me what I'm missing please?

Thanks in advance.