=== modified file 'HOW_TO_CONTRIBUTE.txt'
--- HOW_TO_CONTRIBUTE.txt	2013-04-10 07:23:20 +0000
+++ HOW_TO_CONTRIBUTE.txt	2013-06-07 00:09:32 +0000
@@ -5,7 +5,7 @@
 	sudo apt-get install debhelper dpatch libx11-dev
 	sudo apt-get install libglu1-mesa-dev libgl1-mesa-dev mesa-common-dev
 	sudo apt-get install libwxbase2.8-dev libwxgtk2.8-dev libboost-dev fakeroot
-	sudo apt-get install cmake bzr
+	sudo apt-get install cmake bzr bzrtools
 
 2) initialize Bazaar:
 	bzr whoami "John Doe <john.doe@gmail.com>"