diff --git a/src/cryptoconditions/Makefile.am b/src/cryptoconditions/Makefile.am
index 615ac5783..8410e7859 100644
--- a/src/cryptoconditions/Makefile.am
+++ b/src/cryptoconditions/Makefile.am
@@ -1,3 +1,6 @@
+# Copyright 2016-2022 The Hush developers
+# Distributed under the GPLv3 software license, see the accompanying
+# file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
 lib_LTLIBRARIES=libcryptoconditions.la
 noinst_LTLIBRARIES=$(CRYPTOCONDITIONS_CORE)
 SUBDIRS = src/include/secp256k1