diff --git a/base-codezero/Makefile b/base-codezero/Makefile
index cd8830e4f..ff518626c 100644
--- a/base-codezero/Makefile
+++ b/base-codezero/Makefile
@@ -18,6 +18,8 @@ check_tool = $(if $(shell which $(1)),,$(error Need to have '$(1)' installed.))
 
 $(call check_tool,git)
 $(call check_tool,patch)
+$(call check_tool,python2.6)
+$(call check_tool,scons)
 
 #
 # Print help information by default