diff --git a/bind8/records-lib.pl b/bind8/records-lib.pl
index 01fb83408..194fe2a3d 100755
--- a/bind8/records-lib.pl
+++ b/bind8/records-lib.pl
@@ -1001,6 +1001,7 @@ if ($z->{'members'}) {
 else {
 	$fn = $z->{'file'};
 	}
+return undef if (!$fn);
 if ($abs) {
 	$fn = &absolute_path($fn);
 	}