Powershell Invoke-Command Remove-Item Remote Server

I want to delete files on a particular folder of a remote server. I execute the following in Powershell:

Invoke-Command -Computer 'compname1' -ScriptBlock {Remove-Item -$args -force } -ArgumentList 'c:\BizTalkDeployment'

I get the following error:

Cannot find drive. A drive with the name '-c' does not exist.

c:\BizTalkDeployment is the correct path on server compname1.

Can anyone please explain what I've done wrong?