--- a/abbrev.gemspec
+++ b/abbrev.gemspec
@@ -23,3 +23 @@
-  spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
-    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
-  end
+  spec.files         = Dir["lib/**/*.rb"]