diff --git a/README-WALKTHROUGHS.md b/README-WALKTHROUGHS.md
index 465555d..def4167 100644
--- a/README-WALKTHROUGHS.md
+++ b/README-WALKTHROUGHS.md
@@ -89,6 +89,8 @@ git clone https://git.yoctoproject.org/git/yocto-autobuilder-helper
 
 # Startup commands (janitor, controller, worker)
 ~/yocto-autobuilder-helper/janitor/ab-janitor &
+cd buildbot
+. testenv/bin/activate
 buildbot start ~/yocto-controller
 buildbot-worker start ~/yocto-worker