1 files changed, 3 insertions, 1 deletions
diff --git a/mx.h b/mx.h
index 2aedf8a3..511eba78 100644
--- a/mx.h
+++ b/mx.h
@@ -1,4 +1,6 @@
-/* mx.h -- name-to-preference association for MX records */
+/* mx.h -- name-to-preference association for MX records.
+ * For license terms, see the file COPYING in this directory.
+ */
 
 struct mxentry
 {