diff --git a/src/strategies/avx2/reg_sad_pow2_widths-avx2.h b/src/strategies/avx2/reg_sad_pow2_widths-avx2.h
index 3b8aeada..aa551ff8 100644
--- a/src/strategies/avx2/reg_sad_pow2_widths-avx2.h
+++ b/src/strategies/avx2/reg_sad_pow2_widths-avx2.h
@@ -1,3 +1,23 @@
+/*****************************************************************************
+ * This file is part of Kvazaar HEVC encoder.
+ *
+ * Copyright (C) 2013-2015 Tampere University of Technology and others (see
+ * COPYING file).
+ *
+ * Kvazaar 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 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * Kvazaar 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 General Public License along
+ * with Kvazaar.  If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+
 #ifndef REG_SAD_POW2_WIDTHS_AVX2_H_
 #define REG_SAD_POW2_WIDTHS_AVX2_H_
 
diff --git a/src/strategies/sse41/reg_sad_pow2_widths-sse41.h b/src/strategies/sse41/reg_sad_pow2_widths-sse41.h
index 1ee725da..a3f554d8 100644
--- a/src/strategies/sse41/reg_sad_pow2_widths-sse41.h
+++ b/src/strategies/sse41/reg_sad_pow2_widths-sse41.h
@@ -1,3 +1,23 @@
+/*****************************************************************************
+ * This file is part of Kvazaar HEVC encoder.
+ *
+ * Copyright (C) 2013-2015 Tampere University of Technology and others (see
+ * COPYING file).
+ *
+ * Kvazaar 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 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * Kvazaar 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 General Public License along
+ * with Kvazaar.  If not, see <http://www.gnu.org/licenses/>.
+ ****************************************************************************/
+
 #ifndef REG_SAD_POW2_WIDTHS_SSE41_H_
 #define REG_SAD_POW2_WIDTHS_SSE41_H_