diff --git a/usr.sbin/rtsold/cap_script.c b/usr.sbin/rtsold/cap_script.c
--- a/usr.sbin/rtsold/cap_script.c
+++ b/usr.sbin/rtsold/cap_script.c
@@ -162,7 +162,7 @@
 	const char *const *iargv, *const *scripts;
 	char **argv;
 	size_t argc, i, nscripts;
-	int fd, status;
+	int error, fd, status;
 
 	if (strcmp(cmd, "script_wait") == 0) {
 		/* Wait for the result of a previous "script_run" command. */
@@ -198,8 +198,10 @@
 	memcpy(argv, iargv, sizeof(*argv) * argc);
 
 	fd = script_run(argv);
+	error = errno;
+	free(argv);
 	if (fd < 0)
-		return (errno);
+		return (error);
 
 	(void)caph_rights_limit(fd, cap_rights_init(&rights, CAP_WRITE));
 	nvlist_move_descriptor(nvlout, "fd", fd);