diff --git a/fedora-obsolete-packages.spec b/fedora-obsolete-packages.spec
index 677b330..45a06bb 100644
--- a/fedora-obsolete-packages.spec
+++ b/fedora-obsolete-packages.spec
@@ -90,6 +90,7 @@ Obsoletes: python3-hawkey < 0.7
 Obsoletes: libhif < 0.3
 Obsoletes: libhif-devel < 0.3
 
+# https://bugzilla.redhat.com/show_bug.cgi?id=1423813
 # Remove in F29
 Obsoletes: kf5-libkface < 16.08.90
 Obsoletes: kf5-libkface-devel < 16.08.90