--- a/cipher.c
+++ b/cipher.c
@@ -72,7 +72,9 @@
 
 	{ "3des-cbc",		SSH_CIPHER_SSH2, 8, 24, 0, EVP_des_ede3_cbc },
 	{ "blowfish-cbc",	SSH_CIPHER_SSH2, 8, 16, 0, EVP_bf_cbc },
+#ifndef OPENSSL_NO_CAST
 	{ "cast128-cbc",	SSH_CIPHER_SSH2, 8, 16, 0, EVP_cast5_cbc },
+#endif
 	{ "arcfour",		SSH_CIPHER_SSH2, 8, 16, 0, EVP_rc4 },
 	{ "arcfour128",		SSH_CIPHER_SSH2, 8, 16, 1536, EVP_rc4 },
 	{ "arcfour256",		SSH_CIPHER_SSH2, 8, 32, 1536, EVP_rc4 },