diff --git a/pool/pool.go b/pool/pool.go
index 4d3cbf0..669970f 100644
--- a/pool/pool.go
+++ b/pool/pool.go
@@ -86,6 +86,8 @@ type client interface {
 type clientStatus interface {
 	// isHealthy checks if the connection can handle requests.
 	isHealthy() bool
+	// isDialed checks if the connection was created.
+	isDialed() bool
 	// setUnhealthy marks client as unhealthy.
 	setUnhealthy()
 	// address return address of endpoint.
@@ -2809,7 +2811,9 @@ func (p *Pool) Close() {
 	// close all clients
 	for _, pools := range p.innerPools {
 		for _, cli := range pools.clients {
-			_ = cli.close()
+			if cli.isDialed() {
+				_ = cli.close()
+			}
 		}
 	}
 }