diff --git a/HowtoContributeABuildbot.md b/HowtoContributeABuildbot.md
index e0d7e42..b43abaa 100644
--- a/HowtoContributeABuildbot.md
+++ b/HowtoContributeABuildbot.md
@@ -5,8 +5,8 @@ Contributing a buildbot improves the quality of Tahoe-LAFS and also is integral
 1. Install [git](http://git-scm.com/).
 1. Install [Python 2.7](https://www.python.org/download/releases/2.7.8/).
 1. Install setuptools: download [ez_setup.py](https://bootstrap.pypa.io/ez_setup.py) into a directory with no Unicode characters in the path, and run it using `python ez_setup.py`.
-1. Run `easy_install pip`.
-1. Run `pip install buildbot-slave`. (If this doesn't work, see the instructions on the [Buildbot trac](http://trac.buildbot.net/wiki/DownloadInstall) for installing buildbot-slave.)
+1. Run "`easy_install pip`".
+1. Run "`pip install buildbot-slave`". Do this in a virtualenv if you prefer. (If this doesn't work, see the instructions on the [Buildbot trac](http://trac.buildbot.net/wiki/DownloadInstall) for installing buildbot-slave.)
 
 A buildslave makes TCP connections to the buildmaster, which `tahoe-lafs.org` operates.  You do not need a publicly routable IP address.