1 files changed, 2 insertions, 0 deletions

diff --git a/cipher.c b/cipher.c
index e7c3c5411..ce533670b 100644
--- a/cipher.c
+++ b/cipher.c
@@ -87,9 +87,11 @@ struct Cipher {
         { "rijndael-cbc@lysator.liu.se",
                                 SSH_CIPHER_SSH2, 16, 32, EVP_aes_256_cbc },
 #endif
+#if OPENSSL_VERSION_NUMBER >= 0x00906000L
         { "aes128-ctr",         SSH_CIPHER_SSH2, 16, 16, evp_aes_128_ctr },
         { "aes192-ctr",         SSH_CIPHER_SSH2, 16, 24, evp_aes_128_ctr },
         { "aes256-ctr",         SSH_CIPHER_SSH2, 16, 32, evp_aes_128_ctr },
+#endif
 
         { NULL,                 SSH_CIPHER_ILLEGAL, 0, 0, NULL }
 };