diff --git a/xroot_clients/CTACmd.cpp b/xroot_clients/CTACmd.cpp
index 35f311c937bb5b299ed2395c2b893141997313c3..03592bcca736ff9dc697c37230253a19c3412bc5 100644
--- a/xroot_clients/CTACmd.cpp
+++ b/xroot_clients/CTACmd.cpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "CTACmd.hpp"
 
 #include "XrdCl/XrdClFileSystem.hh"
diff --git a/xroot_clients/CTACmd.hpp b/xroot_clients/CTACmd.hpp
index 618372fc15770ae74f8c0f6dba2f484ce3af8ce4..d3e733dc6d142e5412d28951194ee0a32ac2ae92 100644
--- a/xroot_clients/CTACmd.hpp
+++ b/xroot_clients/CTACmd.hpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 
 #include <exception>
diff --git a/xroot_clients/CTACmdMain.cpp b/xroot_clients/CTACmdMain.cpp
index 096842cb68b2af148cddda57c5347c0306083878..29024208387c098d1ca8068fc74df51afbfb0ae1 100644
--- a/xroot_clients/CTACmdMain.cpp
+++ b/xroot_clients/CTACmdMain.cpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "CTACmd.hpp"
 
 //------------------------------------------------------------------------------
diff --git a/xroot_clients/CTACopyCmd.cpp b/xroot_clients/CTACopyCmd.cpp
index 8b827d8b8df1f058c484883fd8fbfcd7a510b1e9..3faf58f54de6eb640275bfa6c6257bafcd3908e5 100644
--- a/xroot_clients/CTACopyCmd.cpp
+++ b/xroot_clients/CTACopyCmd.cpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "CTACopyCmd.hpp"
 
 #include "XrdCl/XrdClFileSystem.hh"
diff --git a/xroot_clients/CTACopyCmd.hpp b/xroot_clients/CTACopyCmd.hpp
index d67ca836b258e961c3a3f4c27429264358a040cd..cbd4c8bc97188c1019cece7210ec41b0733ed92a 100644
--- a/xroot_clients/CTACopyCmd.hpp
+++ b/xroot_clients/CTACopyCmd.hpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 
 #include <exception>
diff --git a/xroot_clients/CTACopyCmdMain.cpp b/xroot_clients/CTACopyCmdMain.cpp
index 4650bdc44656d0b23d1d4aef008f633aaaac0f1a..0d36c6613389bd0910d72781afdaf907a729c74d 100644
--- a/xroot_clients/CTACopyCmdMain.cpp
+++ b/xroot_clients/CTACopyCmdMain.cpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "CTACopyCmd.hpp"
 
 //------------------------------------------------------------------------------
diff --git a/xroot_clients/CTADirCmd.cpp b/xroot_clients/CTADirCmd.cpp
index 17fb23de0230c361d535d14a6db0a660ae3720c2..18f0a7c02acf13d781dd2891e63eeb68203fa924 100644
--- a/xroot_clients/CTADirCmd.cpp
+++ b/xroot_clients/CTADirCmd.cpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "CTADirCmd.hpp"
 
 #include "XrdCl/XrdClFileSystem.hh"
diff --git a/xroot_clients/CTADirCmd.hpp b/xroot_clients/CTADirCmd.hpp
index 1e3dc4deb9a3211879f52bb83c22eee26c064d28..390bddc6e665e1acaaf79c42f13dc691cba4b4b7 100644
--- a/xroot_clients/CTADirCmd.hpp
+++ b/xroot_clients/CTADirCmd.hpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 
 #include <exception>
diff --git a/xroot_clients/CTADirCmdMain.cpp b/xroot_clients/CTADirCmdMain.cpp
index 371d68ff0d766c7172df03004a69844c37746b74..6398a85037d54175e21744940ae9c672a16c9cb8 100644
--- a/xroot_clients/CTADirCmdMain.cpp
+++ b/xroot_clients/CTADirCmdMain.cpp
@@ -1,3 +1,21 @@
+/**
+ * The CERN Tape Archive (CTA) project
+ * Copyright (C) 2015  CERN
+ *
+ * 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
+ * (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, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "CTADirCmd.hpp"
 
 //------------------------------------------------------------------------------