diff --git a/progress.go b/progress.go
index e7dc45f..3b89094 100644
--- a/progress.go
+++ b/progress.go
@@ -379,11 +379,7 @@
 		pool = append(pool, b)
 	}
 
-	switch len(pool) {
-	case 0:
-	case 1:
-		heap.Push(&s.bHeap, pool[0])
-	default:
+	if len(pool) != 0 {
 		wg.Add(1)
 		go func() {
 			for _, b := range pool {