diff --git a/client_integration_test.go b/client_integration_test.go
index a2b3171..7b26a30 100644
--- a/client_integration_test.go
+++ b/client_integration_test.go
@@ -25,8 +25,9 @@ import (
 	"testing/quick"
 	"time"
 
-	"github.com/kr/fs"
 	"sort"
+
+	"github.com/kr/fs"
 )
 
 const (
@@ -1733,7 +1734,7 @@ func benchmarkRead(b *testing.B, bufsize int, delay time.Duration) {
 	// open sftp client
 	sftp, cmd := testClient(b, READONLY, delay)
 	defer cmd.Wait()
-	defer sftp.Close()
+	// defer sftp.Close()
 
 	buf := make([]byte, bufsize)
 
@@ -1811,7 +1812,7 @@ func benchmarkWrite(b *testing.B, bufsize int, delay time.Duration) {
 	// open sftp client
 	sftp, cmd := testClient(b, false, delay)
 	defer cmd.Wait()
-	defer sftp.Close()
+	// defer sftp.Close()
 
 	data := make([]byte, size)
 
@@ -1926,7 +1927,7 @@ func benchmarkCopyDown(b *testing.B, fileSize int64, delay time.Duration) {
 
 	sftp, cmd := testClient(b, READONLY, delay)
 	defer cmd.Wait()
-	defer sftp.Close()
+	// defer sftp.Close()
 	b.ResetTimer()
 	b.SetBytes(fileSize)
 
@@ -1999,7 +2000,7 @@ func benchmarkCopyUp(b *testing.B, fileSize int64, delay time.Duration) {
 
 	sftp, cmd := testClient(b, false, delay)
 	defer cmd.Wait()
-	defer sftp.Close()
+	// defer sftp.Close()
 
 	b.ResetTimer()
 	b.SetBytes(fileSize)