1 files changed, 1 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
index 58f3de9e89..d149ec6129 100644
--- a/Gemfile
+++ b/Gemfile
@@ -39,6 +39,7 @@ instance_eval File.read local_gemfile if File.exists? local_gemfile
 platforms :mri do
   group :test do
     gem 'ruby-prof', '~> 0.11.2'
+    gem 'debugger' if !ENV['TRAVIS'] && RUBY_VERSION < "2.0"
   end
 end