diff --git a/event/events_test.go b/event/events_test.go
index 9f373f46ee8d30a5c08cdd63a41e9d7c7f02fc95..b9305d79e6de5d72ff02f459fcdd88502eda9dec 100644
--- a/event/events_test.go
+++ b/event/events_test.go
@@ -53,7 +53,7 @@ func TestMultiplexedEvents(t *testing.T) {
 		mutex2.Unlock()
 	})
 
-	time.Sleep(2 * mockInterval)
+	time.Sleep(4 * mockInterval)
 
 	err := emitter12.Unsubscribe("Sub12")
 	assert.NoError(t, err)