diff --git a/foomatic-db.spec b/foomatic-db.spec
index 9a7490a..d4d675a 100644
--- a/foomatic-db.spec
+++ b/foomatic-db.spec
@@ -1,4 +1,6 @@
 %global dbver_rel 4.0
+# When you change dbver_snap, rebuild also foomatic against this build to pick up new IEEE 1284 Device IDs.
+# The postscriptdriver tags get put onto foomatic, because that's there the actual CUPS driver lives.
 %global dbver_snap 20130604
 
 Summary: Database of printers and printer drivers