diff --git a/license_finder.gemspec b/license_finder.gemspec
index 6ee2d7ebe..b3f3c35bd 100644
--- a/license_finder.gemspec
+++ b/license_finder.gemspec
@@ -62,7 +62,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency "mime-types", "< 3.0"
   s.add_development_dependency "addressable", "< 2.5.0"
 
-  s.files         = `git ls-files`.split("\n")
-  s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
+  s.files         = `git ls-files`.split("\n").reject { |s| s.start_with? 'spec' }
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
 end