diff --git a/packages/repository/src/__tests__/acceptance/belongs-to.relation.acceptance.ts b/packages/repository/src/__tests__/acceptance/belongs-to.relation.acceptance.ts
index 135db145af54..e4ea0e085e0d 100644
--- a/packages/repository/src/__tests__/acceptance/belongs-to.relation.acceptance.ts
+++ b/packages/repository/src/__tests__/acceptance/belongs-to.relation.acceptance.ts
@@ -3,15 +3,19 @@
 // This file is licensed under the MIT License.
 // License text available at https://opensource.org/licenses/MIT
 
+import {Application} from '@loopback/core';
+import {expect} from '@loopback/testlab';
 import {
+  ApplicationWithRepositories,
   juggler,
   repository,
   RepositoryMixin,
-  ApplicationWithRepositories,
 } from '../..';
-import {CustomerRepository, OrderRepository} from '../fixtures/repositories';
-import {expect} from '@loopback/testlab';
-import {Application} from '@loopback/core';
+import {
+  CustomerRepository,
+  OrderRepository,
+  ShipmentRepository,
+} from '../fixtures/repositories';
 
 describe('BelongsTo relation', () => {
   // Given a Customer and Order models - see definitions at the bottom
@@ -20,9 +24,10 @@ describe('BelongsTo relation', () => {
   let controller: OrderController;
   let customerRepo: CustomerRepository;
   let orderRepo: OrderRepository;
+  let shipmentRepo: ShipmentRepository;
 
   before(givenApplicationWithMemoryDB);
-  before(givenBoundCrudRepositoriesForCustomerAndOrder);
+  before(givenBoundCrudRepositories);
   before(givenOrderController);
 
   beforeEach(async () => {
@@ -39,6 +44,19 @@ describe('BelongsTo relation', () => {
     expect(result).to.deepEqual(customer);
   });
 
+  it('can find shipment of order with a custom foreign key name', async () => {
+    const shipment = await shipmentRepo.create({
+      name: 'Tuesday morning shipment',
+    });
+    const order = await orderRepo.create({
+      // eslint-disable-next-line @typescript-eslint/camelcase
+      shipment_id: shipment.id,
+      description: 'Order that is shipped Tuesday morning',
+    });
+    const result = await controller.findOrderShipment(order.id);
+    expect(result).to.deepEqual(shipment);
+  });
+
   //--- HELPERS ---//
 
   class OrderController {
@@ -49,6 +67,10 @@ describe('BelongsTo relation', () => {
     async findOwnerOfOrder(orderId: string) {
       return await this.orderRepository.customer(orderId);
     }
+
+    async findOrderShipment(orderId: string) {
+      return await this.orderRepository.shipment(orderId);
+    }
   }
 
   function givenApplicationWithMemoryDB() {
@@ -57,11 +79,13 @@ describe('BelongsTo relation', () => {
     app.dataSource(new juggler.DataSource({name: 'db', connector: 'memory'}));
   }
 
-  async function givenBoundCrudRepositoriesForCustomerAndOrder() {
+  async function givenBoundCrudRepositories() {
     app.repository(CustomerRepository);
     app.repository(OrderRepository);
+    app.repository(ShipmentRepository);
     customerRepo = await app.getRepository(CustomerRepository);
     orderRepo = await app.getRepository(OrderRepository);
+    shipmentRepo = await app.getRepository(ShipmentRepository);
   }
 
   async function givenOrderController() {
diff --git a/packages/repository/src/__tests__/fixtures/models/customer.model.ts b/packages/repository/src/__tests__/fixtures/models/customer.model.ts
index ae7bf09d12a2..fd18dc9e82dd 100644
--- a/packages/repository/src/__tests__/fixtures/models/customer.model.ts
+++ b/packages/repository/src/__tests__/fixtures/models/customer.model.ts
@@ -5,7 +5,7 @@
 
 import {belongsTo, Entity, hasMany, hasOne, model, property} from '../../..';
 import {Address, AddressWithRelations} from './address.model';
-import {Order} from './order.model';
+import {Order, OrderWithRelations} from './order.model';
 
 @model()
 export class Customer extends Entity {
@@ -35,6 +35,7 @@ export class Customer extends Entity {
 
 export interface CustomerRelations {
   address?: AddressWithRelations;
+  orders?: OrderWithRelations[];
   customers?: CustomerWithRelations[];
   parentCustomer?: CustomerWithRelations;
 }
diff --git a/packages/repository/src/__tests__/fixtures/models/index.ts b/packages/repository/src/__tests__/fixtures/models/index.ts
index be01cc1bfd19..9c1ee60840f0 100644
--- a/packages/repository/src/__tests__/fixtures/models/index.ts
+++ b/packages/repository/src/__tests__/fixtures/models/index.ts
@@ -3,7 +3,8 @@
 // This file is licensed under the MIT License.
 // License text available at https://opensource.org/licenses/MIT
 
+export * from './address.model';
 export * from './customer.model';
 export * from './order.model';
 export * from './product.model';
-export * from './address.model';
+export * from './shipment.model';
diff --git a/packages/repository/src/__tests__/fixtures/models/order.model.ts b/packages/repository/src/__tests__/fixtures/models/order.model.ts
index 3e6ab1504e8b..4202f85f9cc5 100644
--- a/packages/repository/src/__tests__/fixtures/models/order.model.ts
+++ b/packages/repository/src/__tests__/fixtures/models/order.model.ts
@@ -5,6 +5,7 @@
 
 import {belongsTo, Entity, model, property} from '../../..';
 import {Customer, CustomerWithRelations} from './customer.model';
+import {Shipment, ShipmentWithRelations} from './shipment.model';
 
 @model()
 export class Order extends Entity {
@@ -28,10 +29,14 @@ export class Order extends Entity {
 
   @belongsTo(() => Customer)
   customerId: number;
+
+  @belongsTo(() => Shipment)
+  shipment_id: number;
 }
 
 export interface OrderRelations {
   customer?: CustomerWithRelations;
+  shipment?: ShipmentWithRelations;
 }
 
 export type OrderWithRelations = Order & OrderRelations;
diff --git a/packages/repository/src/__tests__/fixtures/models/shipment.model.ts b/packages/repository/src/__tests__/fixtures/models/shipment.model.ts
new file mode 100644
index 000000000000..cf9787af8448
--- /dev/null
+++ b/packages/repository/src/__tests__/fixtures/models/shipment.model.ts
@@ -0,0 +1,32 @@
+// Copyright IBM Corp. 2019. All Rights Reserved.
+// Node module: @loopback/repository
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Entity, hasMany, model, property} from '../../..';
+import {Order, OrderWithRelations} from './order.model';
+
+@model()
+export class Shipment extends Entity {
+  @property({
+    type: 'number',
+    id: true,
+  })
+  id: number;
+
+  @property({type: 'string'})
+  name: string;
+
+  @hasMany(() => Order, {keyTo: 'shipment_id'})
+  shipmentOrders: Order[];
+
+  constructor(data?: Partial<Shipment>) {
+    super(data);
+  }
+}
+
+export interface ShipmentRelations {
+  orders?: OrderWithRelations[];
+}
+
+export type ShipmentWithRelations = Shipment & ShipmentRelations;
diff --git a/packages/repository/src/__tests__/fixtures/repositories/address.repository.ts b/packages/repository/src/__tests__/fixtures/repositories/address.repository.ts
index 3be973cef13c..9b86f39706ac 100644
--- a/packages/repository/src/__tests__/fixtures/repositories/address.repository.ts
+++ b/packages/repository/src/__tests__/fixtures/repositories/address.repository.ts
@@ -29,7 +29,7 @@ export class AddressRepository extends DefaultCrudRepository<
     customerRepositoryGetter: Getter<CustomerRepository>,
   ) {
     super(Address, db);
-    this.customer = this._createBelongsToAccessorFor(
+    this.customer = this.createBelongsToAccessorFor(
       'customer',
       customerRepositoryGetter,
     );
diff --git a/packages/repository/src/__tests__/fixtures/repositories/index.ts b/packages/repository/src/__tests__/fixtures/repositories/index.ts
index 1052585f6f6b..30f070573c57 100644
--- a/packages/repository/src/__tests__/fixtures/repositories/index.ts
+++ b/packages/repository/src/__tests__/fixtures/repositories/index.ts
@@ -3,7 +3,8 @@
 // This file is licensed under the MIT License.
 // License text available at https://opensource.org/licenses/MIT
 
+export * from './address.repository';
 export * from './customer.repository';
 export * from './order.repository';
 export * from './product.repository';
-export * from './address.repository';
+export * from './shipment.repository';
diff --git a/packages/repository/src/__tests__/fixtures/repositories/order.repository.ts b/packages/repository/src/__tests__/fixtures/repositories/order.repository.ts
index 2d83b256458e..e6dfbcc2d69d 100644
--- a/packages/repository/src/__tests__/fixtures/repositories/order.repository.ts
+++ b/packages/repository/src/__tests__/fixtures/repositories/order.repository.ts
@@ -10,8 +10,8 @@ import {
   juggler,
   repository,
 } from '../../..';
-import {Customer, Order, OrderRelations} from '../models';
-import {CustomerRepository} from '../repositories';
+import {Customer, Order, OrderRelations, Shipment} from '../models';
+import {CustomerRepository, ShipmentRepository} from '../repositories';
 
 export class OrderRepository extends DefaultCrudRepository<
   Order,
@@ -22,16 +22,26 @@ export class OrderRepository extends DefaultCrudRepository<
     Customer,
     typeof Order.prototype.id
   >;
+  public readonly shipment: BelongsToAccessor<
+    Shipment,
+    typeof Order.prototype.id
+  >;
 
   constructor(
     @inject('datasources.db') protected db: juggler.DataSource,
     @repository.getter('CustomerRepository')
     customerRepositoryGetter: Getter<CustomerRepository>,
+    @repository.getter('ShipmentRepository')
+    shipmentRepositoryGetter: Getter<ShipmentRepository>,
   ) {
     super(Order, db);
     this.customer = this.createBelongsToAccessorFor(
       'customer',
       customerRepositoryGetter,
     );
+    this.shipment = this.createBelongsToAccessorFor(
+      'shipment_id',
+      shipmentRepositoryGetter,
+    );
   }
 }
diff --git a/packages/repository/src/__tests__/fixtures/repositories/shipment.repository.ts b/packages/repository/src/__tests__/fixtures/repositories/shipment.repository.ts
new file mode 100644
index 000000000000..9b7aea3b768a
--- /dev/null
+++ b/packages/repository/src/__tests__/fixtures/repositories/shipment.repository.ts
@@ -0,0 +1,37 @@
+// Copyright IBM Corp. 2019. All Rights Reserved.
+// Node module: @loopback/repository
+// This file is licensed under the MIT License.
+// License text available at https://opensource.org/licenses/MIT
+
+import {Getter, inject} from '@loopback/context';
+import {OrderRepository} from '.';
+import {
+  DefaultCrudRepository,
+  HasManyRepositoryFactory,
+  juggler,
+  repository,
+} from '../../..';
+import {Order, Shipment, ShipmentRelations} from '../models';
+
+export class ShipmentRepository extends DefaultCrudRepository<
+  Shipment,
+  typeof Shipment.prototype.id,
+  ShipmentRelations
+> {
+  public readonly orders: HasManyRepositoryFactory<
+    Order,
+    typeof Shipment.prototype.id
+  >;
+
+  constructor(
+    @inject('datasources.db') protected db: juggler.DataSource,
+    @repository.getter('OrderRepository')
+    orderRepositoryGetter: Getter<OrderRepository>,
+  ) {
+    super(Shipment, db);
+    this.orders = this.createHasManyRepositoryFactoryFor(
+      'shipmentOrders',
+      orderRepositoryGetter,
+    );
+  }
+}