diff --git a/ghc-snap-core.spec b/ghc-snap-core.spec
index 4c48386..c23983c 100644
--- a/ghc-snap-core.spec
+++ b/ghc-snap-core.spec
@@ -3,6 +3,7 @@
 
 %global pkg_name snap-core
 %global pkgver %{pkg_name}-%{version}
+# https://bugzilla.redhat.com/show_bug.cgi?id=1256057
 %global subpkgver time-locale-compat-0.1.1.3
 
 Name:           ghc-%{pkg_name}