diff --git a/wolfssl/ssl.h b/wolfssl/ssl.h
index e1615af7e..3609c8201 100644
--- a/wolfssl/ssl.h
+++ b/wolfssl/ssl.h
@@ -385,6 +385,7 @@ enum AlertDescription {
     unsupported_extension           = 110, /**< RFC 5246, section 7.2.2 */
     unrecognized_name               = 112, /**< RFC 6066, section 3 */
     bad_certificate_status_response = 113, /**< RFC 6066, section 8 */
+    unknown_psk_identity            = 115, /**< RFC 4279, section 2 */
     no_application_protocol         = 120
 };