diff --git a/railties/test/application/rake/dbs_test.rb b/railties/test/application/rake/dbs_test.rb
index 9868707570..3dce315d3a 100644
--- a/railties/test/application/rake/dbs_test.rb
+++ b/railties/test/application/rake/dbs_test.rb
@@ -1,4 +1,5 @@
 require "isolation/abstract_unit"
+require "active_support/core_ext/string/strip"
 
 module ApplicationTests
   module RakeTests