diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index a36e742..875709c 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -369,6 +369,7 @@
 #define SSL_ALERT_MSG_PROTOCOL_VERSION      70  /* 0x46 */
 #define SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71  /* 0x47 */
 #define SSL_ALERT_MSG_INTERNAL_ERROR        80  /* 0x50 */
+#define SSL_ALERT_MSG_INAPROPRIATE_FALLBACK 86  /* 0x56 */
 #define SSL_ALERT_MSG_USER_CANCELED         90  /* 0x5A */
 #define SSL_ALERT_MSG_NO_RENEGOTIATION     100  /* 0x64 */
 #define SSL_ALERT_MSG_UNSUPPORTED_EXT      110  /* 0x6E */