Gemfile in deep_tree-0.0.2 vs Gemfile in deep_tree-0.0.3

@@ -3,6 +3,7 @@
 # Specify your gem's dependencies in deep_tree.gemspec
 gemspec
 
 group :benchmarks do
   gem 'hashie'
+  gem 'require_relative', :platform => "ruby_18"
 end
\ No newline at end of file