diff --git a/example/priv/repo/migrations/20160715113442_create_people.exs b/example/priv/repo/migrations/20160715113442_create_people.exs
index 72822dd3..c7cdd4c8 100644
--- a/example/priv/repo/migrations/20160715113442_create_people.exs
+++ b/example/priv/repo/migrations/20160715113442_create_people.exs
@@ -9,7 +9,11 @@ defmodule Example.Repo.Migrations.CreatePeople do
       add :gender, :boolean
       add :birthdate, :date
 
+      add :company_id, references(:companies), null: false
+
       timestamps
     end
+
+    create index(:people, [:company_id])
   end
 end