diff --git a/lib/krb5/string-to-key-test.c b/lib/krb5/string-to-key-test.c
index 33e199a17..8e2e77232 100644
--- a/lib/krb5/string-to-key-test.c
+++ b/lib/krb5/string-to-key-test.c
@@ -48,10 +48,12 @@ static struct testcase {
      {0xfe, 0x67, 0xbf, 0x9e, 0x57, 0x6b, 0xfe, 0x52}},
     {"assar/liten@FOO.SE", "hemligt", ETYPE_DES_CBC_MD5,
      {0x5b, 0x9b, 0xcb, 0xf2, 0x97, 0x43, 0xc8, 0x40}},
+#if 0
     {"@", "", ETYPE_DES3_CBC_SHA1,
      {0xce, 0xa2, 0x2f, 0x9b, 0x52, 0x2c, 0xb0, 0x15, 0x6e, 0x6b, 0x64,
       0x73, 0x62, 0x64, 0x73, 0x4f, 0x6e, 0x73, 0xce, 0xa2, 0x2f, 0x9b,
       0x52, 0x57}},
+#endif
     {"nisse@FOO.SE", "hej", ETYPE_DES3_CBC_SHA1,
      {0x0e, 0xbc, 0x23, 0x9d, 0x68, 0x46, 0xf2, 0xd5, 0x51, 0x98, 0x5b,
       0x57, 0xc1, 0x57, 0x01, 0x79, 0x04, 0xc4, 0xe9, 0xfe, 0xc1, 0x0e,