diff --git a/include/villas/list.h b/include/villas/list.h
index e1d796628..16d003f5c 100644
--- a/include/villas/list.h
+++ b/include/villas/list.h
@@ -8,7 +8,22 @@
  *
  * @file
  * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
- * @copyright 20177, Institute for Automation of Complex Power Systems, EONERC
+ * @copyright 2017-2018, Institute for Automation of Complex Power Systems, EONERC
+*
+ * VILLASnode
+ *
+ * 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 3 of the License, or
+ * 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, see <http://www.gnu.org/licenses/>.
  *********************************************************************************/
 
 #pragma once
@@ -127,4 +142,4 @@ ssize_t list_index(struct list *l, void *value);
 
 #ifdef __cplusplus
 }
-#endif
\ No newline at end of file
+#endif