diff --git a/types/netmap/IPServiceMappings.go b/types/netmap/IPServiceMappings.go
index 0cd207fb8..4f02924ab 100644
--- a/types/netmap/IPServiceMappings.go
+++ b/types/netmap/IPServiceMappings.go
@@ -1,3 +1,5 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
 package netmap
 
 import "net/netip"