diff --git a/uri.gemspec b/uri.gemspec
index 9cf0a71..0d0f897 100644
--- a/uri.gemspec
+++ b/uri.gemspec
@@ -30,8 +30,11 @@ Gem::Specification.new do |spec|
 
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  gemspec = File.basename(__FILE__)
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
-    `git ls-files -z 2>#{IO::NULL}`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+    `git ls-files -z 2>#{IO::NULL}`.split("\x0").reject do |file|
+      (file == gemspec) || file.start_with?(*%w[bin/ test/ rakelib/ .github/ .gitignore Gemfile Rakefile])
+    end
   end
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }