diff --git a/activesupport/lib/active_support/rescuable.rb b/activesupport/lib/active_support/rescuable.rb
index 0abbe1cd2a..a7258c870a 100644
--- a/activesupport/lib/active_support/rescuable.rb
+++ b/activesupport/lib/active_support/rescuable.rb
@@ -1,4 +1,5 @@
 require 'active_support/core_ext/class/inheritable_attributes'
+require 'active_support/core_ext/proc'
 
 module ActiveSupport
   # Rescuable module adds support for easier exception handling.