How do I tell aptitude or apt to offer a particular version of lpr?

I seem to have a weird version of lpr installed (one that doesn't cope with -o, see also this question). On all my other machines that run the same debian squeeze, the proper version of lpr is installed.

How can I get aptitude to install the "good" lpr?

Note: The contents of /etc/apt/sources.list are not the problem, I guess. The file is the same on all machines.

Edit: A related question is here.

Solution 1:

Man pages mention:

A specific version of a package can be selected for installation by following the package name with an equals (=) and the version of the package to select

So it'll be something like

$ apt-get install lpr=<version>