diff --git a/internal/client/order.go b/internal/client/order.go
index 6662f2a..bed5803 100644
--- a/internal/client/order.go
+++ b/internal/client/order.go
@@ -10,32 +10,36 @@ import (
 	"strconv"
 )
 
-type OrderClient struct {
+type OrderClient interface {
+	CheckOrder(OrderNum string) (services.OrderFromAccrual, int, error)
+}
+
+type OrderClientService struct {
 	logger               *zap.Logger
 	accrualSystemAddress string
 }
 
-func NewOrderClient(opts ...func(*OrderClient)) *OrderClient {
-	orderClient := &OrderClient{}
+func NewOrderClient(opts ...func(*OrderClientService)) *OrderClientService {
+	orderClient := &OrderClientService{}
 	for _, opt := range opts {
 		opt(orderClient)
 	}
 	return orderClient
 }
 
-func WithLogger(logger *zap.Logger) func(*OrderClient) {
-	return func(o *OrderClient) {
+func WithLogger(logger *zap.Logger) func(*OrderClientService) {
+	return func(o *OrderClientService) {
 		o.logger = logger
 	}
 }
 
-func WithAccrualSystemAddress(accrualSystemAddress string) func(*OrderClient) {
-	return func(o *OrderClient) {
+func WithAccrualSystemAddress(accrualSystemAddress string) func(*OrderClientService) {
+	return func(o *OrderClientService) {
 		o.accrualSystemAddress = accrualSystemAddress
 	}
 }
 
-func (c OrderClient) CheckOrder(OrderNum string) (services.OrderFromAccrual, int, error) {
+func (c OrderClientService) CheckOrder(OrderNum string) (services.OrderFromAccrual, int, error) {
 	data := services.OrderFromAccrual{}
 	resp, err := http.Get(c.accrualSystemAddress + "/api/orders/" + OrderNum)
 	if err != nil {
diff --git a/internal/workers/order.go b/internal/workers/order.go
index a3190a1..a6703af 100644
--- a/internal/workers/order.go
+++ b/internal/workers/order.go
@@ -16,7 +16,7 @@ type OrderWorker struct {
 	orderQueue   chan string
 	logger       *zap.Logger
 	conf         config.Config
-	orderClient  *client.OrderClient
+	orderClient  client.OrderClient
 }
 
 func NewOrderWorker(opts ...func(*OrderWorker)) *OrderWorker {
@@ -59,7 +59,7 @@ func WithConfig(conf config.Config) func(*OrderWorker) {
 	}
 }
 
-func WithOrderClient(orderClient *client.OrderClient) func(*OrderWorker) {
+func WithOrderClient(orderClient client.OrderClient) func(*OrderWorker) {
 	return func(o *OrderWorker) {
 		o.orderClient = orderClient
 	}