diff --git a/src/mame/drivers/gal3.cpp b/src/mame/drivers/gal3.cpp
index 4d100831b25..2a3d41b1539 100644
--- a/src/mame/drivers/gal3.cpp
+++ b/src/mame/drivers/gal3.cpp
@@ -1,4 +1,4 @@
-// license:???
+// license:BSD-3-Clause
 // copyright-holders:Naibo Zhang
 /* Galaxian 3