Index: src/obj_pstk.c
===================================================================
--- src/obj_pstk.c	(revision 35685)
+++ src/obj_pstk.c	(revision 35686)
@@ -870,6 +870,7 @@
 		info.objcb.pstk.shape_mask = PCB_LYT_MECH;
 		info.objcb.pstk.is_current = (draw_hole > 1);
 		pcb_pstk_draw_hole_callback((rnd_box_t *)ps, &info);
+		pcb_pstk_draw_slot_callback((rnd_box_t *)ps, &info);
 	}
 
 	if (mark)