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-rw-r--r--activerecord/lib/active_record/attribute_methods/dirty.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb
index 8c58e63931..07d194cc57 100644
--- a/activerecord/lib/active_record/attribute_methods/dirty.rb
+++ b/activerecord/lib/active_record/attribute_methods/dirty.rb
@@ -1,4 +1,5 @@
# frozen_string_literal: true
+
require "active_support/core_ext/module/attribute_accessors"
require_relative "../attribute_mutation_tracker"