diff --git a/pool.go b/pool.go
index 704571c..29de436 100644
--- a/pool.go
+++ b/pool.go
@@ -172,7 +172,7 @@ func (p *Pool) getWorker() *Worker {
 			p.lock.Unlock()
 			break
 		}
-	} else {
+	} else if w == nil {
 		wp := p.workerPool.Get()
 		if wp == nil {
 			w = &Worker{