diff --git a/test/test_xdg.rb b/test/test_xdg.rb
index 5f27b45..69c7a01 100644
--- a/test/test_xdg.rb
+++ b/test/test_xdg.rb
@@ -1,4 +1,4 @@
-$: << 'lib'
+$:.unshift 'lib'
 
 require 'xdg/extended'
 require 'test/unit'