--- a/treetop.gemspec
+++ b/treetop.gemspec
@@ -18,9 +18,5 @@
 
-  spec.files = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(spec|website|script|\.|benchmark)}) }
+  spec.files = Dir["lib/**/*", "bin/*"]
   spec.executables = ["tt"]
   spec.require_paths = ["lib"]
-  spec.extra_rdoc_files = [
-    "LICENSE",
-    "README.md"
-  ]