diff --git a/db/migrate/027_add_customers_phone_number.rb b/db/migrate/027_add_customers_phone_number.rb
index 4d5e7de..ec08241 100644
--- a/db/migrate/027_add_customers_phone_number.rb
+++ b/db/migrate/027_add_customers_phone_number.rb
@@ -10,6 +10,6 @@
 
 class AddCustomersPhoneNumber < ActiveRecord::Migration
   def change
-    add_column :customers, :phone_number, :integer
+    add_column :customers, :phone_number, :string
   end
 end