--- a/httparty.gemspec
+++ b/httparty.gemspec
@@ -22,7 +22,7 @@
   # If this line is removed, all hard partying will cease.
   s.post_install_message = "When you HTTParty, you must party hard!"
 
-  all_files = `git ls-files`.split("\n")
+  all_files = Dir["lib/**/*"]
   test_files = `git ls-files -- {test,spec,features}/*`.split("\n")
 
   s.files         = all_files - test_files