diff --git a/bin/tests/system/resolver/ans8/ans.pl b/bin/tests/system/resolver/ans8/ans.pl
index a1a092a1ef..948859d698 100644
--- a/bin/tests/system/resolver/ans8/ans.pl
+++ b/bin/tests/system/resolver/ans8/ans.pl
@@ -73,7 +73,11 @@ sub handleUDP {
 		$packet->header->tc(0);
 	}
 
-	return $packet->data;
+	# Net::DNS versions < 0.68 insert an ./ANY RR into the QUESTION section
+	# if the latter is empty.  Make sure Net::DNS version does not
+	# influence the return value of this function by returning the query ID
+	# and flags generated by Net::DNS with 8 zero bytes appended.
+	return substr($packet->data, 0, 4) . "\x00" x 8;
 }
 
 sub handleTCP {