diff --git a/ccid_host/ccid_main_functionfs.c b/ccid_host/ccid_main_functionfs.c
index d3e0c3c..b538e12 100644
--- a/ccid_host/ccid_main_functionfs.c
+++ b/ccid_host/ccid_main_functionfs.c
@@ -1,3 +1,22 @@
+/* CCID USB Gadget - Main program using USB FunctionFS
+ *
+ * (C) 2019-2020 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA
+ */
+
 
 #include <errno.h>
 #include <stdint.h>