diff --git a/dash.spec b/dash.spec
index 51fb449..1a155f3 100644
--- a/dash.spec
+++ b/dash.spec
@@ -10,6 +10,7 @@ Group:          System Environment/Shells
 License:        BSD and GPLv2+ and Public Domain and Copyright only
 URL:            http://gondor.apana.org.au/~herbert/%{name}/
 Source0:        http://gondor.apana.org.au/~herbert/%{name}/files/%{name}-%{version}.tar.gz
+# http://www.mail-archive.com/dash@vger.kernel.org/msg00879.html
 Patch0:         %{name}-0.5.7-format-security.patch
 
 %description