Gemfile in groupify-0.1.0 vs Gemfile in groupify-0.1.1

@@ -1,4 +1,8 @@
 source :rubygems
 
 # Specify your gem's dependencies in groupify.gemspec
-gemspec
+gemspec
+
+platform :ruby, :mswin, :mingw do
+  gem "bson_ext", "~> 1.6.4"
+end
\ No newline at end of file