diff --git a/sse/sse.go b/sse/sse.go
index 35ea4e7..6765a9d 100644
--- a/sse/sse.go
+++ b/sse/sse.go
@@ -91,26 +91,26 @@ func (sse *SseBroker) HasClients() bool {
 	return len(sse.clients) > 0
 }
 
-func (broker *SseBroker) listen() {
+func (sse *SseBroker) listen() {
 	for {
 		select {
-		case s := <-broker.newClients:
+		case s := <-sse.newClients:
 			{
-				broker.lock.Lock()
-				broker.clients[s] = true
-				broker.lock.Unlock()
-				log.Printf("Client added. %d registered clients", len(broker.clients))
+				sse.lock.Lock()
+				sse.clients[s] = true
+				sse.lock.Unlock()
+				log.Printf("Client added. %d registered clients", len(sse.clients))
 			}
-		case s := <-broker.closingClients:
+		case s := <-sse.closingClients:
 			{
-				broker.lock.Lock()
-				delete(broker.clients, s)
-				broker.lock.Unlock()
-				log.Printf("Removed client. %d registered clients", len(broker.clients))
+				sse.lock.Lock()
+				delete(sse.clients, s)
+				sse.lock.Unlock()
+				log.Printf("Removed client. %d registered clients", len(sse.clients))
 			}
-		case event := <-broker.notifier:
+		case event := <-sse.notifier:
 			{
-				for clientMessageChan := range broker.clients {
+				for clientMessageChan := range sse.clients {
 					select {
 					case clientMessageChan <- event:
 					case <-time.After(patience):
diff --git a/sse/tick.go b/sse/tick.go
index f4cd959..917a0ff 100644
--- a/sse/tick.go
+++ b/sse/tick.go
@@ -1,9 +1,9 @@
 package sse
 
 import (
+	"context"
 	"os"
 	"time"
-	"context"
 )
 
 func Tick(broker Broker, notify func(context.Context, Broker), period time.Duration, stop chan os.Signal) {
@@ -21,7 +21,6 @@ func Tick(broker Broker, notify func(context.Context, Broker), period time.Durat
 			{
 				cancel()
 				ticker.Stop()
-				os.Exit(0)
 			}
 		}
 	}
diff --git a/sse/tick_test.go b/sse/tick_test.go
index 5f90343..97d5d2c 100644
--- a/sse/tick_test.go
+++ b/sse/tick_test.go
@@ -1,15 +1,15 @@
 package sse
 
 import (
+	"context"
+	"encoding/json"
+	. "github.com/aandryashin/matchers"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"os"
 	"testing"
 	"time"
-	. "github.com/aandryashin/matchers"
-	"encoding/json"
-	"context"
-	"io/ioutil"
 )
 
 type MockBroker struct {
@@ -24,7 +24,7 @@ func (mb *MockBroker) Notify(data []byte) {
 	mb.messages <- string(data)
 }
 
-func (mb *MockBroker) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
+func (mb *MockBroker) ServeHTTP(rw http.ResponseWriter, _ *http.Request) {
 	rw.WriteHeader(http.StatusOK)
 }
 
@@ -33,9 +33,9 @@ func TestTick(t *testing.T) {
 	broker := &MockBroker{messages: make(chan string, 10)}
 	stop := make(chan os.Signal)
 	go Tick(broker, func(ctx context.Context, br Broker) {
-		req, _ := http.NewRequest("GET", srv.URL + "/status", nil)
+		req, _ := http.NewRequest("GET", srv.URL+"/status", nil)
 		resp, _ := http.DefaultClient.Do(req)
-		data, _ := ioutil.ReadAll(resp.Body)
+		data, _ := io.ReadAll(resp.Body)
 		br.Notify(data)
 	}, 10*time.Millisecond, stop)
 	time.Sleep(50 * time.Millisecond)