diff --git a/cmake/modules/CheckAtomic.cmake b/cmake/modules/CheckAtomic.cmake
index c8168d60d..8a58bf251 100644
--- a/cmake/modules/CheckAtomic.cmake
+++ b/cmake/modules/CheckAtomic.cmake
@@ -1,9 +1,21 @@
 #
 # Copyright 2013-2021 Software Radio Systems Limited
 #
-# By using this file, you agree to the terms and conditions set
-# forth in the LICENSE file which can be found at the top level of
-# the distribution.
+# This file is part of srsRAN
+#
+# srsRAN is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of
+# the License, or (at your option) any later version.
+#
+# srsRAN 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 Affero General Public License for more details.
+#
+# A copy of the GNU Affero General Public License can be found in
+# the LICENSE file in the top-level directory of this distribution
+# and at http://www.gnu.org/licenses/.
 #
 
 # Adopted from https://github.com/pothosware/SoapyRTLSDR
diff --git a/lib/include/srsran/phy/phch/pbch_nr.h b/lib/include/srsran/phy/phch/pbch_nr.h
index cc31fa3b3..2f3b1a395 100644
--- a/lib/include/srsran/phy/phch/pbch_nr.h
+++ b/lib/include/srsran/phy/phch/pbch_nr.h
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/include/srsran/phy/sync/pss_nr.h b/lib/include/srsran/phy/sync/pss_nr.h
index e56a10dfa..2bf3c4c35 100644
--- a/lib/include/srsran/phy/sync/pss_nr.h
+++ b/lib/include/srsran/phy/sync/pss_nr.h
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/include/srsran/phy/sync/ssb.h b/lib/include/srsran/phy/sync/ssb.h
index 66c23f8c5..5eb6d5ecf 100644
--- a/lib/include/srsran/phy/sync/ssb.h
+++ b/lib/include/srsran/phy/sync/ssb.h
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/include/srsran/phy/sync/sss_nr.h b/lib/include/srsran/phy/sync/sss_nr.h
index 87ec5092c..1f0ec0e22 100644
--- a/lib/include/srsran/phy/sync/sss_nr.h
+++ b/lib/include/srsran/phy/sync/sss_nr.h
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/src/phy/sync/pss_nr.c b/lib/src/phy/sync/pss_nr.c
index 488ee0f19..444fdc1d8 100644
--- a/lib/src/phy/sync/pss_nr.c
+++ b/lib/src/phy/sync/pss_nr.c
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/src/phy/sync/ssb.c b/lib/src/phy/sync/ssb.c
index 324b6b308..2c2e0b94b 100644
--- a/lib/src/phy/sync/ssb.c
+++ b/lib/src/phy/sync/ssb.c
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/src/phy/sync/sss_nr.c b/lib/src/phy/sync/sss_nr.c
index 0ef3fa0bc..a71ba097e 100644
--- a/lib/src/phy/sync/sss_nr.c
+++ b/lib/src/phy/sync/sss_nr.c
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */
 
diff --git a/lib/src/phy/sync/test/ssb_measure_test.c b/lib/src/phy/sync/test/ssb_measure_test.c
index 46530d739..148867507 100644
--- a/lib/src/phy/sync/test/ssb_measure_test.c
+++ b/lib/src/phy/sync/test/ssb_measure_test.c
@@ -1,12 +1,21 @@
 /**
+ * Copyright 2013-2021 Software Radio Systems Limited
  *
- * \section COPYRIGHT
+ * This file is part of srsRAN.
  *
- * Copyright 2013-2021 Software Radio Systems Limited
+ * srsRAN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * srsRAN 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 Affero General Public License for more details.
  *
- * By using this file, you agree to the terms and conditions set
- * forth in the LICENSE file which can be found at the top level of
- * the distribution.
+ * A copy of the GNU Affero General Public License can be found in
+ * the LICENSE file in the top-level directory of this distribution
+ * and at http://www.gnu.org/licenses/.
  *
  */