diff --git a/README b/README
index a45f19d..109e9db 100644
--- a/README
+++ b/README
@@ -140,4 +140,4 @@ Compiling from Source
 
 See separate file BuildInstructions.txt.
 
-Licence: GPL
+Licence: GPLv3, see http://www.gnu.org/licenses/gpl-3.0.en.html