diff --git a/Rakefile.rb b/Rakefile.rb
index 4c713cd..eecb0a0 100644
--- a/Rakefile.rb
+++ b/Rakefile.rb
@@ -88,4 +88,8 @@ EOF
   FileUtils.cp("dist/rscons", "large_project")
 end
 
+task :gen_user_guide do
+  system("ruby", "-Ilib", "rb/gen_user_guide.rb")
+end
+
 task :default => :spec