diff --git a/internal/pool/pool.go b/internal/pool/pool.go
index 44a4e77..3a6ecb2 100644
--- a/internal/pool/pool.go
+++ b/internal/pool/pool.go
@@ -542,7 +542,7 @@ func (p *ConnPool) reapStaleConn() *Conn {
 
 func (p *ConnPool) isStaleConn(cn *Conn) bool {
 	if p.opt.IdleTimeout == 0 && p.opt.MaxConnAge == 0 {
-		return false
+		return connCheck(cn.netConn) != nil
 	}
 
 	now := time.Now()
@@ -553,5 +553,5 @@ func (p *ConnPool) isStaleConn(cn *Conn) bool {
 		return true
 	}
 
-	return false
+	return connCheck(cn.netConn) != nil
 }
diff --git a/main_test.go b/main_test.go
index 5414310..5529112 100644
--- a/main_test.go
+++ b/main_test.go
@@ -324,7 +324,7 @@ func startRedis(port string, args ...string) (*redisProcess, error) {
 
 	p := &redisProcess{process, client}
 	registerProcess(port, p)
-	return p, err
+	return p, nil
 }
 
 func startSentinel(port, masterName, masterPort string) (*redisProcess, error) {