diff --git a/bytesconv.go b/bytesconv.go
index 374092a30f..81f8e5b167 100644
--- a/bytesconv.go
+++ b/bytesconv.go
@@ -11,7 +11,6 @@ import (
 	"math"
 	"net"
 	"reflect"
-	"runtime"
 	"strings"
 	"sync"
 	"time"
@@ -348,7 +347,6 @@ func s2b(s string) (b []byte) {
 	bh.Data = sh.Data
 	bh.Cap = sh.Len
 	bh.Len = sh.Len
-	runtime.KeepAlive(&s)
 	return b
 }