diff --git a/inst.c b/inst.c
index e3f1e63..7534717 100644
--- a/inst.c
+++ b/inst.c
@@ -934,7 +934,7 @@ int inst_hole(struct obj *obj, struct coord a, struct coord b)
 	inst = add_inst(&hole_ops, ip_hole, a);
 	inst->obj = obj;
 	inst->u.hole.other = b;
-	inst->u.pad.layers = mech_hole_layers();
+	inst->u.hole.layers = mech_hole_layers();
 	find_inst(inst);
 	update_bbox(&inst->bbox, b);
 	propagate_bbox(inst);
diff --git a/layer.c b/layer.c
index c03f4fc..b6a533c 100644
--- a/layer.c
+++ b/layer.c
@@ -91,8 +91,7 @@ enum pad_type layers_to_pad_type(layer_type layers)
 
 layer_type mech_hole_layers(void)
 {
-	return LAYER_PASTE_TOP | LAYER_PASTE_BOTTOM |
-	    LAYER_MASK_TOP | LAYER_MASK_BOTTOM;
+	return LAYER_MASK_TOP | LAYER_MASK_BOTTOM;
 }