diff --git a/modello.spec b/modello.spec
index cc6ffbe..ba36320 100644
--- a/modello.spec
+++ b/modello.spec
@@ -7,7 +7,9 @@ Epoch:          0
 Version:        1.10.0
 Release:        1%{?dist}
 # The majority of files are under MIT license, but some of them are ASL 2.0.
-License:        MIT and ASL 2.0
+# Some parts of the project are derived from the Exolab project,
+# and are licensed under a 5-clause BSD license.
+License:        MIT and ASL 2.0 and BSD
 
 URL:            http://codehaus-plexus.github.io/modello
 Source0:        http://repo2.maven.org/maven2/org/codehaus/%{name}/%{name}/%{version}/%{name}-%{version}-source-release.zip