Error when specifying volume type on create

Steps to reproduce:
1) cinder type-create "foo"
2) cinder --debug create --display_name ok --volume_type 'foo' 8

Output:
DEBUG (shell:473) 'str' object has no attribute 'get'
Traceback (most recent call last):
File "/opt/stack/python-cinderclient/cinderclient/shell.py", line 470, in main
OpenStackCinderShell().main(sys.argv[1:])
File "/opt/stack/python-cinderclient/cinderclient/shell.py", line 421, in main
args.func(self.cs, args)
File "/opt/stack/python-cinderclient/cinderclient/v1/shell.py", line 217, in do_create
metadata=volume_metadata)
File "/opt/stack/python-cinderclient/cinderclient/v1/volumes.py", line 111, in create
volume_type_id = volume_type.get('id', None)
AttributeError: 'str' object has no attribute 'get'
ERROR: 'str' object has no attribute 'get'

Using latest version from git.