diff --git a/test/test_helper.rb b/test/test_helper.rb
index 2f54598..d8b903b 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -7,7 +7,7 @@
 Bundler.require
 
 require "RMagick"
-require "debugger" unless ENV["TRAVIS"]
+require "debugger" unless ENV["TRAVIS"] || RUBY_VERSION.start_with?("1.8")
 
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), "..", "lib"))