@@ -80,9 +80,10 @@ func InitFilter(home string, options []string, uidMaps, gidMaps []idtools.IDMap)

 	return d, nil

 }

-// String returns the string representation of a driver.

+// String returns the string representation of a driver. This should match

+// the name the graph driver has been registered with.

 func (d *Driver) String() string {

-	return "Windows filter storage driver"

+	return "windowsfilter"

 }

 // Status returns the status of the driver.