diff --git a/app/models/employee.rb b/app/models/employee.rb
index fb9bc1b..9c5358b 100644
--- a/app/models/employee.rb
+++ b/app/models/employee.rb
@@ -13,6 +13,8 @@ class Employee < ActiveRecord::Base
   has_many :users
   validates_presence_of :id, :name
 
+  self.primary_key = :id
+
   # Sync all employees, typically triggered by a scheduled task or manual sync request
   def self.sync
     EmployeeSyncJob.perform_later(full_sync: true)