diff --git a/echoc.1 b/echoc.1
index 2f659b7..9cada97 100644
--- a/echoc.1
+++ b/echoc.1
@@ -1,3 +1,18 @@
+.\"
+.\" Copyright (c) 2012-2015 Matthieu Herrb <matthieu@herrb.eu>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
 .Dd $Mdocdate: September 29 2015 $
 .Dt ECHOC 1
 .Os
diff --git a/echoc.c b/echoc.c
index 993a8a2..a337cfe 100644
--- a/echoc.c
+++ b/echoc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012 Matthieu Herrb <matthieu@herrb.eu>
+ * Copyright (c) 2012-2015 Matthieu Herrb <matthieu@herrb.eu>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above