Capistrano deployment failing with 'rbenv: /home/alexander/.rvm/bin/rvm: command not found'

[Arcrammer]

I won't show the whole log but here's the error message:

    (Backtrace restricted to imported tasks)
    cap aborted!
    SSHKit::Runner::ExecuteError: Exception while executing as alexander@104.236.110.192: bundle exit status: 127
    bundle stdout: rbenv: /home/alexander/.rvm/bin/rvm: command not found
    bundle stderr: Nothing written

    SSHKit::Command::Failed: bundle exit status: 127
    bundle stdout: rbenv: /home/alexander/.rvm/bin/rvm: command not found
    bundle stderr: Nothing written

    Tasks: TOP => deploy:updated => bundler:install
    (See full trace by running task with --trace)
    The deploy has failed with an error: Exception while executing as alexander@104.236.110.192: bundle exit status: 127
    bundle stdout: rbenv: /home/alexander/.rvm/bin/rvm: command not found
    bundle stderr: Nothing written

I have no idea what this means. Ideas?