Index: rats_act.c
===================================================================
--- rats_act.c	(revision 10981)
+++ rats_act.c	(revision 10982)
@@ -102,7 +102,7 @@
 			}
 			PCB_END_LOOP;
 			if (shorty) {
-				pcb_undo_add_obj_to_flag(PCB_TYPE_RATLINE, shorty, shorty, shorty);
+				pcb_undo_add_obj_to_flag(shorty);
 				PCB_FLAG_SET(PCB_FLAG_SELECTED, shorty);
 				pcb_rat_invalidate_draw(shorty);
 				pcb_draw();