[dump] UnboundLocalError: local variable 'filename' referenced before assignment

[0xdevalias]

python sparty_v_0.1.py -u http://site.local -a ntlm -d dump

Traceback (most recent call last):
  File "sparty_v_0.1.py", line 777, in <module>
    main()
  File "sparty_v_0.1.py", line 615, in main
    dump_credentials(target)
  File "sparty_v_0.1.py", line 215, in dump_credentials
    print "[+] check the (%s) file if generated !\n" %(filename)
UnboundLocalError: local variable 'filename' referenced before assignment