diff --git a/check.py b/check.py
index 9d74011..4c0fdbe 100755
--- a/check.py
+++ b/check.py
@@ -1,4 +1,21 @@
 #!/usr/bin/env python
+'''
+  Simple DirectMedia Layer
+  Copyright (C) 2017-2018 Philippe Groarke <philippe.groarke@gmail.com>
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+'''
 
 import sys
 # if sys.version_info[0] != 3: