Nipype error with recon-all autorecon2-cp directive

I’m trying to run autorecon2-cp with nipype but I’m getting this error:

reconall = ReconAll()
reconall.inputs.subject_id = 'sub01'
reconall.inputs.directive = 'autorecon2-cp'
reconall.inputs.subjects_dir = '/data/FS/'
reconall.cmdline

 nipype.interface INFO:
      recon-all complete : Not running
    u'echo recon-all: nothing to do'

if I run this command in the command line however

recon-all -autorecon2-cp -sd /data/FS/ -s sub01

it runs without a problem.

My nipype version is 1.2.3.

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