Index: obj_arc_ui.c
===================================================================
--- obj_arc_ui.c	(revision 30906)
+++ obj_arc_ui.c	(revision 30907)
@@ -139,7 +139,7 @@
 	int *end_pt = Ptr3;
 	rnd_coord_t ex, ey;
 	pcb_arc_get_end(arc, (end_pt != pcb_arc_start_ptr), &ex, &ey);
-	*res = pcb_point_box(ex, ey);
+	*res = rnd_point_box(ex, ey);
 	return 0;
 }