--- db/backend.ml	2010-09-06 15:06:44.000000000 +0000
+++ db/backend.ml.patched	2011-04-11 12:32:36.877095708 +0000
@@ -460,6 +460,7 @@
     version = pkg.number;
     source = ("",None);
     architecture = "";
+    priority = "";
     essential = false;
     depends = loadll (List.assoc (`Depends) pkg.cnf_deps);
     pre_depends = loadll (List.assoc (`Pre_depends) pkg.cnf_deps);