diff --git a/bison.spec b/bison.spec
index c52db63..3fe1b9f 100644
--- a/bison.spec
+++ b/bison.spec
@@ -1,8 +1,8 @@
 Summary: A GNU general-purpose parser generator.
 Name: bison
 Version: 2.3
-Release: 3%{?dist}
-License: GPL
+Release: 4%{?dist}
+License: GPLv2+
 Group: Development/Tools
 Source: ftp://ftp.gnu.org/pub/gnu/bison/bison-%{version}.tar.bz2
 URL: http://www.gnu.org/software/bison/
@@ -100,6 +100,9 @@ fi
 rm -rf $RPM_BUILD_ROOT
 
 %changelog
+* Tue Aug 28 2007 Roland McGrath <roland@redhat.com> - 2.3-4
+- Canonicalize License tag.
+
 * Sun Jan 21 2007 Roland McGrath <roland@redhat.com> - 2.3-3
 - Canonicalize post/preun use of install-info.
 - Resolves: 223679