diff --git a/batphone.gemspec b/batphone.gemspec
index 44e0297..b744e8e 100644
--- a/batphone.gemspec
+++ b/batphone.gemspec
@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
   s.homepage = "http://hans.fugal.net/src/batphone/doc/files/README.html"
   s.platform = Gem::Platform::RUBY
   s.description = "Very simple and easy to learn bridge to AGI (Asterisk Gateway Interface)"
-  s.files = ["README", "README.fastagi", "ChangeLog", "lib/agi.rb", "lib/fastagi.rb"]
+  s.files = Dir.glob("lib/**/*") + ["README", "README.fastagi", "ChangeLog"]
   s.has_rdoc = true
   s.extra_rdoc_files = ["README", "README.fastagi"]
 end