diff --git a/rubyzip.gemspec b/rubyzip.gemspec
index 6b873752..8415d87c 100644
--- a/rubyzip.gemspec
+++ b/rubyzip.gemspec
@@ -13,7 +13,6 @@ Gem::Specification.new do |s|
   s.platform              = Gem::Platform::RUBY
   s.summary               = 'rubyzip is a ruby module for reading and writing zip files'
   s.files                 = Dir.glob('{samples,lib}/**/*.rb') + %w[README.md TODO Rakefile]
-  s.test_files            = Dir.glob('test/**/*')
   s.require_paths         = ['lib']
   s.license               = 'BSD 2-Clause'
   s.metadata              = {