diff --git a/modules/projects/README.md b/modules/projects/README.md
index 2826d3f..e564840 100644
--- a/modules/projects/README.md
+++ b/modules/projects/README.md
@@ -5,6 +5,8 @@ simple project manifest example:
 
 ```puppet
 class projects::boxen {
+  include qt # requires the qt module in Puppetfile
+
   $dir = "${boxen::config::srcdir}/boxen"
 
   repository { $dir: