diff --git a/escpos/escpos.py b/escpos/escpos.py
index b6befdd..b2e91f7 100644
--- a/escpos/escpos.py
+++ b/escpos/escpos.py
@@ -3,7 +3,7 @@
 @author: Manuel F Martinez <manpaz@bashlinux.com>
 @organization: Bashlinux
 @copyright: Copyright (c) 2012 Bashlinux
-@license: GPL
+@license: GNU GPL v3
 """
 
 try:
diff --git a/escpos/printer.py b/escpos/printer.py
index a34edb4..d60e880 100644
--- a/escpos/printer.py
+++ b/escpos/printer.py
@@ -3,7 +3,7 @@
 @author: Manuel F Martinez <manpaz@bashlinux.com>
 @organization: Bashlinux
 @copyright: Copyright (c) 2012 Bashlinux
-@license: GPL
+@license: GNU GPL v3
 """
 
 import usb.core