diff --git a/server/migrations/20250913000002-add-device-tenant-support.js b/server/migrations/20250913000002-add-device-tenant-support.js
index bb9fbe8..57b5e8a 100644
--- a/server/migrations/20250913000002-add-device-tenant-support.js
+++ b/server/migrations/20250913000002-add-device-tenant-support.js
@@ -21,7 +21,7 @@ module.exports = {
     if (!tableDescription.tenant_id) {
       // Add tenant_id column to devices table
       await queryInterface.addColumn('devices', 'tenant_id', {
-        type: Sequelize.INTEGER,
+        type: Sequelize.UUID,
         allowNull: true, // Nullable for backward compatibility
         references: {
           model: 'tenants',