diff --git a/sonic-visualiser.spec b/sonic-visualiser.spec
index a4cb0b7..9d1a7a4 100644
--- a/sonic-visualiser.spec
+++ b/sonic-visualiser.spec
@@ -10,6 +10,7 @@ Source0:        http://downloads.sourceforge.net/sv1/sonic-visualiser-%{version}
 Source1:        sonic-visualiser.desktop
 Patch0:         %{name}-1.8-gcc46.patch
 Patch1:         %{name}-1.8-implicit-dso.patch
+# https://code.soundsoftware.ac.uk/issues/258
 Patch2:         %{name}-1.8-no_virt_QObject.patch
 
 %if 0%{?el5}