diff --git a/poppler.spec b/poppler.spec
index 3e7dae0..3a359d6 100644
--- a/poppler.spec
+++ b/poppler.spec
@@ -11,6 +11,7 @@ Group: Development/Libraries
 URL:     http://poppler.freedesktop.org/
 Source0: http://poppler.freedesktop.org/poppler-%{version}.tar.gz
 Source1: http://poppler.freedesktop.org/poppler-data-%{dataversion}.tar.gz
+# https://bugs.freedesktop.org/show_bug.cgi?id=12016
 Patch0: debug-spew.patch
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root