diff --git a/test/threading/test_threading_large_pool.rb b/test/threading/test_threading_large_pool.rb
index 6a98d4d..5df349a 100644
--- a/test/threading/test_threading_large_pool.rb
+++ b/test/threading/test_threading_large_pool.rb
@@ -1,4 +1,4 @@
-require 'test/test_helper'
+require './test/test_helper'
 
 # Essentialy the same as test_threading.rb but with an expanded pool for
 # testing multiple connections.