diff -up ykpers-1.4.1/tests/test_args_to_config.c.bigendian ykpers-1.4.1/tests/test_args_to_config.c
--- ykpers-1.4.1/tests/test_args_to_config.c.bigendian	2011-04-29 17:09:24.000000000 +0200
+++ ykpers-1.4.1/tests/test_args_to_config.c	2011-04-29 17:09:37.000000000 +0200
@@ -86,6 +86,7 @@ void _check_success(int rc, YKP_CONFIG *
 	/* insert CRC */
 	ycfg->crc = ~yubikey_crc16 ((unsigned char *) ycfg,
 				    offsetof(struct config_st, crc));
+	ycfg->crc = yk_endian_swap_16(ycfg->crc);
 
 	config_matches_expected = ! memcmp(expected, ycfg, sizeof(*ycfg));
 	if (! config_matches_expected) {