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-rw-r--r--actionpack/lib/action_controller/record_identifier.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/record_identifier.rb b/actionpack/lib/action_controller/record_identifier.rb
index 2def78b51a..c11d676c5e 100644
--- a/actionpack/lib/action_controller/record_identifier.rb
+++ b/actionpack/lib/action_controller/record_identifier.rb
@@ -40,7 +40,7 @@ module ActionController
# dom_class(post, :edit) # => "edit_post"
# dom_class(Person, :edit) # => "edit_person"
def dom_class(record_or_class, prefix = nil)
- singular = ActiveModel::Naming.singular(record_or_class)
+ singular = ActiveModel::Naming.param_key(record_or_class)
prefix ? "#{prefix}#{JOIN}#{singular}" : singular
end