diff --git a/Rakefile b/Rakefile
index 2f62ad9..66245a3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -10,6 +10,7 @@ begin
     gem.email = "josh@feefighters.com"
     gem.homepage = "http://github.com/jkrall/analytical"
     gem.authors = ["Joshua Krall", "Nathan Phelps", "Adam Anderson", "Kevin Menard", "Ablyamitov Ablyamit", "Kurt Werle", "Olivier Lauzon", "Daniel Doubrovkine"]
+    gem.files = Dir['lib/**/*'] + Dir['app/**/*'] + Dir['rails/**/*']
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
   Jeweler::GemcutterTasks.new