diff --git a/pool.go b/pool.go
index 755e32d..9184c24 100644
--- a/pool.go
+++ b/pool.go
@@ -96,7 +96,7 @@ func NewPool(size, expiry int) (*Pool, error) {
 		capacity:   int32(size),
 		freeSignal: make(chan sig, math.MaxInt32),
 		release:    make(chan sig, 1),
-		expiryDuration: time.Duration(expiry)*time.Second,
+		expiryDuration: time.Duration(expiry) * time.Second,
 	}
 	p.monitorAndClear()
 	return p, nil
diff --git a/pool_func.go b/pool_func.go
index f583600..439b0fe 100644
--- a/pool_func.go
+++ b/pool_func.go
@@ -96,7 +96,7 @@ func NewPoolWithFunc(size, expiry int, f pf) (*PoolWithFunc, error) {
 		capacity:   int32(size),
 		freeSignal: make(chan sig, math.MaxInt32),
 		release:    make(chan sig, 1),
-		expiryDuration: time.Duration(expiry)*time.Second,
+		expiryDuration: time.Duration(expiry) * time.Second,
 		poolFunc:   f,
 	}
 	p.MonitorAndClear()