diff --git a/railties/lib/rails_generator/generators/components/plugin/templates/unit_test.rb b/railties/lib/rails_generator/generators/components/plugin/templates/unit_test.rb
index 44e4b54c2ef9b606371c237defeafa87611155e9..8491d2e3aec77ec6c03b7a70b09084d2ba99e2a8 100644
--- a/railties/lib/rails_generator/generators/components/plugin/templates/unit_test.rb
+++ b/railties/lib/rails_generator/generators/components/plugin/templates/unit_test.rb
@@ -1,3 +1,5 @@
+require 'test/unit'
+
 class <%= class_name %>Test < Test::Unit::TestCase
   # Replace this with your real tests.
   def test_truth