diff --git a/pool.go b/pool.go
index 53044a5..79a2afb 100644
--- a/pool.go
+++ b/pool.go
@@ -64,7 +64,7 @@ type Pool struct {
 func (p *Pool) monitorAndClear() {
 	heartbeat := time.NewTicker(p.expiryDuration)
 	go func() {
-		for range heartbeat.C{
+		for range heartbeat.C {
 			currentTime := time.Now()
 			p.lock.Lock()
 			idleWorkers := p.workers
diff --git a/pool_func.go b/pool_func.go
index 4176d71..f9ac15b 100644
--- a/pool_func.go
+++ b/pool_func.go
@@ -63,8 +63,9 @@ type PoolWithFunc struct {
 }
 
 func (p *PoolWithFunc) monitorAndClear() {
+	heartbeat := time.NewTicker(p.expiryDuration)
 	go func() {
-		for {
+		for range heartbeat.C {
 			time.Sleep(p.expiryDuration)
 			currentTime := time.Now()
 			p.lock.Lock()
@@ -88,12 +89,12 @@ func (p *PoolWithFunc) monitorAndClear() {
 	}()
 }
 
-// NewTimingPoolWithFunc generates a instance of ants pool with a specific function and a custom timed task
+// NewPoolWithFunc generates a instance of ants pool with a specific function
 func NewPoolWithFunc(size int, f pf) (*PoolWithFunc, error) {
 	return NewTimingPoolWithFunc(size, DefaultCleanIntervalTime, f)
 }
 
-// NewPoolWithFunc generates a instance of ants pool with a specific function
+// NewTimingPoolWithFunc generates a instance of ants pool with a specific function and a custom timed task
 func NewTimingPoolWithFunc(size, expiry int, f pf) (*PoolWithFunc, error) {
 	if size <= 0 {
 		return nil, ErrPoolSizeInvalid