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-rw-r--r--activerecord/lib/active_record/migration.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index 068d2a25b2..fd5ffc6d77 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -1,4 +1,4 @@
-require 'active_support/core_ext/object/metaclass'
+require 'active_support/core_ext/object/singleton_class'
module ActiveRecord
# Exception that can be raised to stop migrations from going backwards.
@@ -303,7 +303,7 @@ module ActiveRecord
case sym
when :up, :down
- metaclass.send(:alias_method_chain, sym, "benchmarks")
+ singleton_class.send(:alias_method_chain, sym, "benchmarks")
end
ensure
@ignore_new_methods = false