diff --git a/activemodel/lib/active_model/callbacks.rb b/activemodel/lib/active_model/callbacks.rb
index c52e4947ae..b5562dda2e 100644
--- a/activemodel/lib/active_model/callbacks.rb
+++ b/activemodel/lib/active_model/callbacks.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/array/extract_options'
+
 module ActiveModel
   # == Active \Model \Callbacks
   #