diff --git a/setup.py b/setup.py
index 61e3fd1..87bba0e 100644
--- a/setup.py
+++ b/setup.py
@@ -46,4 +46,5 @@
           packages=packages,
           package_dir={'': 'lib'},
           package_data=package_data,
-          install_requires=['numpy'])
+          install_requires=['numpy'],
+          license='GPLv3+')