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-rw-r--r--activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb b/activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb
index d8e9768a5e..e4d22516c1 100644
--- a/activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb
+++ b/activesupport/lib/active_support/core_ext/class/inheritable_attributes.rb
@@ -1,4 +1,5 @@
require 'active_support/core_ext/object/duplicable'
+require 'active_support/core_ext/array/extract_options'
# Retain for backward compatibility. Methods are now included in Class.
module ClassInheritableAttributes # :nodoc: