diff --git a/buttonreader.py b/buttonreader.py
index a7aeb3f..5a52261 100644
--- a/buttonreader.py
+++ b/buttonreader.py
@@ -1,6 +1,7 @@
-# write a thread that reads buttoninput from fifo or pyserial or something
-# https://gist.github.com/elshaka/2999082
-# and make this configureable
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 import os
diff --git a/config.py b/config.py
index 6db983b..97860bd 100644
--- a/config.py
+++ b/config.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 import sys
diff --git a/game.py b/game.py
index a87abe4..46b684f 100644
--- a/game.py
+++ b/game.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 from PySide import QtCore, QtGui
diff --git a/gamestate.py b/gamestate.py
index 95b29e6..f7ca2bb 100644
--- a/gamestate.py
+++ b/gamestate.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 import datetime
diff --git a/music.py b/music.py
index 1991766..3749500 100644
--- a/music.py
+++ b/music.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 import os
diff --git a/player.py b/player.py
index 0b775cb..13bc242 100644
--- a/player.py
+++ b/player.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 import yaml
diff --git a/question.py b/question.py
index cf16053..50d2c75 100644
--- a/question.py
+++ b/question.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 import os
 import yaml
 
diff --git a/seopardy.py b/seopardy.py
index 5864bf1..a03415b 100755
--- a/seopardy.py
+++ b/seopardy.py
@@ -1,4 +1,9 @@
 #!/usr/bin/python
+
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 import argparse
diff --git a/video.py b/video.py
index 5d5b83e..2db6be2 100644
--- a/video.py
+++ b/video.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from __future__ import print_function
 
 from PySide import phonon
diff --git a/windows.py b/windows.py
index 9e45272..a38d3fb 100644
--- a/windows.py
+++ b/windows.py
@@ -1,3 +1,7 @@
+# Licensed under GPLv3
+# Written by Sebastian Lohff (seba@someserver.de)
+# http://seba-geek.de/projects/seopardy/
+
 from PySide import QtGui, QtCore
 
 import copy