diff --git a/daemon/archive.go b/daemon/archive.go
index 6d6d01c180..d5f46bf323 100644
--- a/daemon/archive.go
+++ b/daemon/archive.go
@@ -326,7 +326,7 @@ func (daemon *Daemon) containerExtractToDir(container *container.Container, path
 	}
 
 	if !toVolume && container.HostConfig.ReadonlyRootfs {
-		return ErrRootFSReadOnly
+		return errdefs.InvalidParameter(errors.New("container rootfs is marked read-only"))
 	}
 
 	options := daemon.defaultTarCopyOptions(noOverwriteDirNonDir)
diff --git a/daemon/container_operations.go b/daemon/container_operations.go
index 2e912cff6e..a8ae9802f7 100644
--- a/daemon/container_operations.go
+++ b/daemon/container_operations.go
@@ -26,10 +26,6 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
-// ErrRootFSReadOnly is returned when a container
-// rootfs is marked readonly.
-var ErrRootFSReadOnly = errors.New("container rootfs is marked read-only")
-
 func (daemon *Daemon) getDNSSearchSettings(container *container.Container) []string {
 	if len(container.HostConfig.DNSSearch) > 0 {
 		return container.HostConfig.DNSSearch