align=part.align,
                                        no_table=part.no_table,
                                        part_type=part.part_type,
-                                       uuid=part.uuid)
+                                       uuid=part.uuid,
+                                       system_id=part.system_id)
 
         if fstab_path:
             shutil.move(fstab_path + ".orig", fstab_path)
 
 
     def add_partition(self, size, disk_name, mountpoint, source_file=None, fstype=None,
                       label=None, fsopts=None, boot=False, align=None, no_table=False,
-                      part_type=None, uuid=None):
+                      part_type=None, uuid=None, system_id=None):
         """ Add the next partition. Prtitions have to be added in the
         first-to-last order. """