diff --git a/src/state_block/state_block_derived.cpp b/src/state_block/state_block_derived.cpp
index d9548374c7efbff7a3558c95970293810ecf2288..027033744c4070c72c45280d5b209ed423dc074f 100644
--- a/src/state_block/state_block_derived.cpp
+++ b/src/state_block/state_block_derived.cpp
@@ -1,3 +1,24 @@
+//--------LICENSE_START--------
+//
+// Copyright (C) 2020,2021,2022 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.
+// Authors: Joan Solà Ortega (jsola@iri.upc.edu)
+// All rights reserved.
+//
+// This file is part of WOLF
+// WOLF is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+//--------LICENSE_END--------
 
 #include "core/state_block/state_block_derived.h"
 #include "core/state_block/factory_state_block.h"