diff --git a/timer_test.go b/timer_test.go
index b52e102..c2fa041 100644
--- a/timer_test.go
+++ b/timer_test.go
@@ -42,7 +42,7 @@ func TestCreateSecondTickers(t *testing.T) {
 	// Funktion aufrufen
 	ch0, ch50 := createTickers(ftp)
 
-	time.Sleep(15 * time.Second)
+	time.Sleep(20 * time.Second)
 	// Channels auslösen
 	if len(ftp.tickers) != 2 {
 		t.Fatalf("expected 2 tickers, got %d", len(ftp.tickers))