diff --git a/Gemfile b/Gemfile
index 348a1daaa7..d516abe111 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ group :mri do
   if RUBY_VERSION < '1.9'
     gem "system_timer"
     gem "ruby-debug", ">= 0.10.3"
-  elsif RUBY_VERSION < '1.9.2'
+  elsif RUBY_VERSION < '1.9.2' && !ENV['CI']
     gem "ruby-debug19"
   end
 end