diff --git a/Makefile b/Makefile
index 71a1b72..a36014f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 #!/usr/bin/make -f
 
+# remove 'download_extras' to build without third party software
 all: install_buildenv clean download_extras build
 
 install_buildenv: