diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb
index 0b6cdf5217dabdba5462ede4551a7619e0da35db..2e70a0796297419bafec67ad1ad116abb5558ca4 100644
--- a/activerecord/lib/active_record/associations/collection_proxy.rb
+++ b/activerecord/lib/active_record/associations/collection_proxy.rb
@@ -281,7 +281,7 @@ def create!(attributes = {}, &block)
       # so method calls may be chained.
       #
       #   class Person < ActiveRecord::Base
-      #     pets :has_many
+      #     has_many :pets
       #   end
       #
       #   person.pets.size # => 0