diff --git a/third-party/cxxopts/README.md.license b/third-party/cxxopts/README.md.license
new file mode 100644
index 0000000..bf1b5b5
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+++ b/third-party/cxxopts/README.md.license
@@ -0,0 +1,4 @@
+#
+# Copyright (c) 2014 Jarryd Beck
+# SPDX-License-Identifier: MIT
+#