Renaming a virtualenv folder without breaking it

I've created folder and initialized a virtualenv instance in it. $ mkdir myproject $ cd myproject $ virtualenv env When I run `(env)$ pip freeze`, it shows the installed packages as it should. Now I want to rename `myproject/` to `project/`. $ mv myproject/ project/ However, now when I run $ . env/bin/activate (env)$ pip freeze it says pip is not installed. How do I rename the project folder without breaking the environment?