diff --git a/pupy/modules/interactive_shell.py b/pupy/modules/interactive_shell.py
index f499004a..0df0223f 100644
--- a/pupy/modules/interactive_shell.py
+++ b/pupy/modules/interactive_shell.py
@@ -1,4 +1,7 @@
 # -*- coding: UTF8 -*-
+# Copyright (c) 2015, Nicolas VERDIER (contact@n1nj4.eu)
+# Pupy is under the BSD 3-Clause license. see the LICENSE file at the root of the project for the detailed licence terms
+
 from pupylib.PupyModule import *
 from pupylib.utils.rpyc_utils import redirected_stdio
 import sys
diff --git a/pupy/modules/pyexec.py b/pupy/modules/pyexec.py
index 38b71c0d..6fa0cf75 100644
--- a/pupy/modules/pyexec.py
+++ b/pupy/modules/pyexec.py
@@ -1,4 +1,6 @@
 # -*- coding: UTF8 -*-
+# Copyright (c) 2015, Nicolas VERDIER (contact@n1nj4.eu)
+# Pupy is under the BSD 3-Clause license. see the LICENSE file at the root of the project for the detailed licence terms
 from pupylib.PupyModule import *
 import StringIO
 from pupylib.utils.rpyc_utils import redirected_stdo
diff --git a/pupy/modules/pyshell.py b/pupy/modules/pyshell.py
index a28c39a4..2e2eb209 100644
--- a/pupy/modules/pyshell.py
+++ b/pupy/modules/pyshell.py
@@ -1,4 +1,6 @@
 # -*- coding: UTF8 -*-
+# Copyright (c) 2015, Nicolas VERDIER (contact@n1nj4.eu)
+# Pupy is under the BSD 3-Clause license. see the LICENSE file at the root of the project for the detailed licence terms
 from pupylib.PupyModule import *
 import sys
 import subprocess
diff --git a/pupy/modules/shell_exec.py b/pupy/modules/shell_exec.py
index 1bb0e871..8d8accdd 100644
--- a/pupy/modules/shell_exec.py
+++ b/pupy/modules/shell_exec.py
@@ -1,4 +1,6 @@
 # -*- coding: UTF8 -*-
+# Copyright (c) 2015, Nicolas VERDIER (contact@n1nj4.eu)
+# Pupy is under the BSD 3-Clause license. see the LICENSE file at the root of the project for the detailed licence terms
 from pupylib.PupyModule import *
 import subprocess
 from rpyc.utils.helpers import restricted