diff --git a/bin/varnishd/mgt/mgt_cli.c b/bin/varnishd/mgt/mgt_cli.c
index c3b27d49819..c58d1af1f46 100644
--- a/bin/varnishd/mgt/mgt_cli.c
+++ b/bin/varnishd/mgt/mgt_cli.c
@@ -185,7 +185,7 @@ mcf_askchild(struct cli *cli, const char * const *av, void *priv)
 	}
 
 	cmd = mgt_cmd_lookup(av[1]);
-	if (cmd != NULL && CMD_INTERNAL(cmd)) {
+	if (cmd == NULL || CMD_INTERNAL(cmd)) {
 		VCLI_Out(cli, "Unknown request.\nType 'help' for more info.\n");
 		VCLI_SetResult(cli, CLIS_UNKNOWN);
 		return;
diff --git a/bin/varnishtest/tests/b00008.vtc b/bin/varnishtest/tests/b00008.vtc
index 755d6e4b430..4321ea17183 100644
--- a/bin/varnishtest/tests/b00008.vtc
+++ b/bin/varnishtest/tests/b00008.vtc
@@ -49,3 +49,5 @@ varnish v1 -cliexpect 60 "param.show first_byte_timeout"
 varnish v1 -cliok "param.set cli_limit 128"
 
 varnish v1 -clierr 201 "param.show"
+
+varnish v1 -clierr 101 "\"vcl.use foo\""