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-rw-r--r--activerecord/lib/active_record/associations.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index b1778732dd..ab1e7ad269 100644
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -1582,7 +1582,7 @@ module ActiveRecord
# association will use "taggable_type" as the default <tt>:foreign_type</tt>.
# [:primary_key]
# Specify the method that returns the primary key of associated object used for the association.
- # By default this is id.
+ # By default this is +id+.
# [:dependent]
# If set to <tt>:destroy</tt>, the associated object is destroyed when this object is. If set to
# <tt>:delete</tt>, the associated object is deleted *without* calling its destroy method.