diff --git a/client/main.c b/client/main.c
index c8b0f7f..495dc98 100644
--- a/client/main.c
+++ b/client/main.c
@@ -830,6 +830,11 @@ static gboolean parse_argument(int argc, char *argv[], const char **arg_table,
 {
 	const char **opt;
 
+	if (argc < 2) {
+		bt_shell_printf("Missing argument to %s\n", argv[0]);
+		return FALSE;
+	}
+
 	if (!strcmp(argv[1], "help")) {
 		for (opt = arg_table; opt && *opt; opt++)
 			bt_shell_printf("%s\n", *opt);