--- a/unbound_exporter.go
+++ b/unbound_exporter.go
@@ -469,9 +469,9 @@
 		listenAddress = flag.String("web.listen-address", ":9167", "Address to listen on for web interface and telemetry.")
 		metricsPath   = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
 		unboundHost   = flag.String("unbound.host", "tcp://localhost:8953", "Unix or TCP address of Unbound control socket.")
-		unboundCa     = flag.String("unbound.ca", "/etc/unbound/unbound_server.pem", "Unbound server certificate.")
-		unboundCert   = flag.String("unbound.cert", "/etc/unbound/unbound_control.pem", "Unbound client certificate.")
-		unboundKey    = flag.String("unbound.key", "/etc/unbound/unbound_control.key", "Unbound client key.")
+		unboundCa     = flag.String("unbound.ca", "", "Unbound server certificate.")
+		unboundCert   = flag.String("unbound.cert", "", "Unbound client certificate.")
+		unboundKey    = flag.String("unbound.key", "", "Unbound client key.")
 	)
 	flag.Parse()