diff --git a/drivers/input/misc/sgi_btns.c b/drivers/input/misc/sgi_btns.c
index ce238f5..be3a15f 100644
--- a/drivers/input/misc/sgi_btns.c
+++ b/drivers/input/misc/sgi_btns.c
@@ -174,5 +174,6 @@
 	platform_driver_unregister(&sgi_buttons_driver);
 }
 
+MODULE_LICENSE("GPL");
 module_init(sgi_buttons_init);
 module_exit(sgi_buttons_exit);