diff --git a/pg-sessions.asd b/pg-sessions.asd
index 4362160..e9381cf 100644
--- a/pg-sessions.asd
+++ b/pg-sessions.asd
@@ -2,7 +2,7 @@
   :serial t
   :description "Store hunchentoot sessions in a postgres database."
   :author "Thomas Hintz"
-  :license "3-clause BSD."
+  :license "4-clause BSD."
   :depends-on (#:postmodern
                #:anaphora
                #:alexandria