diff --git a/mibuild/altera_quartus.py b/mibuild/altera_quartus.py
index 831b18b7c..c73d2474e 100644
--- a/mibuild/altera_quartus.py
+++ b/mibuild/altera_quartus.py
@@ -1,3 +1,6 @@
+# This file is Copyright (c) 2013 Florent Kermarrec <florent@enjoy-digital.fr>
+# License: GPLv3
+
 import os, subprocess
 
 from mibuild.generic_platform import *
diff --git a/mibuild/platforms/de0nano.py b/mibuild/platforms/de0nano.py
index 05f629f10..496591aca 100644
--- a/mibuild/platforms/de0nano.py
+++ b/mibuild/platforms/de0nano.py
@@ -1,3 +1,6 @@
+# This file is Copyright (c) 2013 Florent Kermarrec <florent@enjoy-digital.fr>
+# License: GPLv3
+
 from mibuild.generic_platform import *
 from mibuild.altera_quartus import AlteraQuartusPlatform, CRG_SE