diff --git a/archive/copy.go b/archive/copy.go
index a7ed12c..ecfd0a9 100644
--- a/archive/copy.go
+++ b/archive/copy.go
@@ -10,6 +10,7 @@ import (
 	"strings"
 
 	"github.com/Sirupsen/logrus"
+	"github.com/docker/docker/pkg/system"
 )
 
 // Errors used or returned by this file.
@@ -210,7 +211,7 @@ func CopyInfoDestinationPath(path string) (info CopyInfo, err error) {
 			return CopyInfo{}, err
 		}
 
-		if !filepath.IsAbs(linkTarget) {
+		if !system.IsAbs(linkTarget) {
 			// Join with the parent directory.
 			dstParent, _ := SplitPathDirEntry(path)
 			linkTarget = filepath.Join(dstParent, linkTarget)
diff --git a/symlink/fs.go b/symlink/fs.go
index ef12f06..d305500 100644
--- a/symlink/fs.go
+++ b/symlink/fs.go
@@ -12,6 +12,8 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/docker/docker/pkg/system"
 )
 
 // FollowSymlinkInScope is a wrapper around evalSymlinksInScope that returns an
@@ -120,7 +122,7 @@ func evalSymlinksInScope(path, root string) (string, error) {
 		if err != nil {
 			return "", err
 		}
-		if filepath.IsAbs(dest) {
+		if system.IsAbs(dest) {
 			b.Reset()
 		}
 		path = dest + string(filepath.Separator) + path