diff --git a/savon.gemspec b/savon.gemspec
index fd10ab2a..1c274655 100644
--- a/savon.gemspec
+++ b/savon.gemspec
@@ -32,6 +32,10 @@ Gem::Specification.new do |s|
   s.add_development_dependency "mocha", "~> 0.11"
   s.add_development_dependency "json",  "~> 1.7"
 
-  s.files = `git ls-files`.split("\n")
+    
+  ignores = File.readlines('.gitignore').grep(/\S+/).map {|s| s.chomp }
+  dotfiles = [ '.gitignore', '.rspec', '.travis.yml', '.yardopts' ]
+  s.files = (Dir["**/*"].reject { |f| File.directory?(f) || ignores.any? { |i| File.fnmatch(i, f) } } + dotfiles).sort
+
   s.require_path = "lib"
 end