diff --git a/test/concurrent/task_test_setup.rb b/test/concurrent/task_test_setup.rb
--- a/test/concurrent/task_test_setup.rb
+++ b/test/concurrent/task_test_setup.rb
@@ -2,7 +2,7 @@
 require File.expand_path(File.dirname(__FILE__) + "/../../config/environment")
 
 def clear_all_tasks
-  Task.find(:all).each do |task|
+  Task.all.each do |task|
     task.destroy
   end
 end