diff --git a/Gemfile b/Gemfile
index dce0c107f2..124fbf5d24 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,6 +24,10 @@ platforms :mri_18 do
   gem "ruby-debug", ">= 0.10.3"
 end
 
+platforms :mri_19 do
+  gem "ruby-debug19"
+end
+
 platforms :ruby do
   gem 'json'
   gem 'yajl-ruby'