diff --git a/pool.go b/pool.go
index 6fe4538..fed110d 100644
--- a/pool.go
+++ b/pool.go
@@ -35,6 +35,7 @@ type pool interface {
 type conn struct {
 	netcn net.Conn
 	rd    *bufio.Reader
+	buf   []byte
 
 	inUse  bool
 	usedAt time.Time
@@ -53,6 +54,7 @@ func newConnFunc(dial func() (net.Conn, error)) func() (*conn, error) {
 		}
 		cn := &conn{
 			netcn: netcn,
+			buf:   make([]byte, 0, 64),
 		}
 		cn.rd = bufio.NewReader(cn)
 		return cn, nil
diff --git a/redis.go b/redis.go
index 1c5f6c3..6c64225 100644
--- a/redis.go
+++ b/redis.go
@@ -14,7 +14,7 @@ type baseClient struct {
 }
 
 func (c *baseClient) writeCmd(cn *conn, cmds ...Cmder) error {
-	buf := make([]byte, 0, 64)
+	buf := cn.buf[:0]
 	for _, cmd := range cmds {
 		buf = appendArgs(buf, cmd.args())
 	}