diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 4f4492f0fd9..703b89ffd03 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -1,4 +1,5 @@
 require 'active_support/duration'
+require 'active_support/core_ext/date/acts_like'
 require 'active_support/core_ext/date/calculations'
 
 class Time