diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
index 628b9e7791..5d77c17f08 100644
--- a/activerecord/lib/active_record/relation/calculations.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -322,7 +322,7 @@ def async_pick(*column_names)
     # Returns the base model's ID's for the relation using the table's primary key
     #
     #   Person.ids # SELECT people.id FROM people
-    #   Person.joins(:companies).ids # SELECT people.id FROM people INNER JOIN companies ON companies.person_id = people.id
+    #   Person.joins(:companies).ids # SELECT people.id FROM people INNER JOIN companies ON companies.id = people.company_id
     def ids
       if loaded?
         result = records.pluck(*Array(primary_key))