diff --git a/src/Mayaqua/Crypto/Key.c b/src/Mayaqua/Crypto/Key.c
index fc6e482c..2520de19 100644
--- a/src/Mayaqua/Crypto/Key.c
+++ b/src/Mayaqua/Crypto/Key.c
@@ -14,8 +14,10 @@ static int CryptoKeyTypeToID(const CRYPTO_KEY_TYPE type)
 			break;
 		case KEY_X25519:
 			return EVP_PKEY_X25519;
+#if defined(EVP_PKEY_X448)
 		case KEY_X448:
 			return EVP_PKEY_X448;
+#endif
 		default:
 			Debug("CryptoKeyTypeToID(): Unhandled type %u!\n", type);
 	}
@@ -164,9 +166,11 @@ bool CryptoKeyOpaqueToRaw(const void *opaque, CRYPTO_KEY_RAW **private, CRYPTO_K
 	case EVP_PKEY_X25519:
 		type = KEY_X25519;
 		break;
+#if defined(EVP_PKEY_X448)
 	case EVP_PKEY_X448:
 		type = KEY_X448;
 		break;
+#endif
 	default:
 		return false;
 	}
diff --git a/src/Mayaqua/Network.c b/src/Mayaqua/Network.c
index b0765976..7d2ea3db 100644
--- a/src/Mayaqua/Network.c
+++ b/src/Mayaqua/Network.c
@@ -11892,7 +11892,9 @@ bool StartSSLEx3(SOCK *sock, X *x, K *priv, LIST *chain, UINT ssl_timeout, char
 						{
 						case SSL_R_UNSUPPORTED_PROTOCOL:
 						case SSL_R_VERSION_TOO_LOW:
+#if defined(SSL_R_VERSION_TOO_HIGH)
 						case SSL_R_VERSION_TOO_HIGH:
+#endif
 							*ssl_err = 150;	// ERR_SSL_PROTOCOL_VERSION
 							break;
 						case SSL_R_NO_SHARED_CIPHER:
@@ -11956,7 +11958,9 @@ bool StartSSLEx3(SOCK *sock, X *x, K *priv, LIST *chain, UINT ssl_timeout, char
 						{
 						case SSL_R_UNSUPPORTED_PROTOCOL:
 						case SSL_R_VERSION_TOO_LOW:
+#if defined(SSL_R_VERSION_TOO_HIGH)
 						case SSL_R_VERSION_TOO_HIGH:
+#endif
 						case SSL_R_TLSV1_ALERT_PROTOCOL_VERSION:
 							*ssl_err = 150;	// ERR_SSL_PROTOCOL_VERSION
 							break;