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diff --git a/README.md b/README.md
index 4c2d117..5a72c30 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+<!-- Copyright 2011-2013 David Robillard <d@drobilla.net> -->
+<!-- SPDX-License-Identifier: ISC -->
+
 Sord
 ====