diff --git a/shoulda-matchers.gemspec b/shoulda-matchers.gemspec
index 0fcb2a08..f61d7641 100644
--- a/shoulda-matchers.gemspec
+++ b/shoulda-matchers.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |s|
     'source_code_uri' => 'https://github.com/thoughtbot/shoulda-matchers',
   }
 
-  s.files = Dir['{docs,lib}/**/*', 'README.md', 'MIT-LICENSE', 'shoulda-matchers.gemspec']
+  s.files = Dir['{docs,lib}/**/*', 'README.md', 'LICENSE', 'shoulda-matchers.gemspec']
   s.require_paths = ['lib']
 
   s.required_ruby_version = '>= 2.4.0'