diff --git a/include/mbedtls/error.h b/include/mbedtls/error.h
index 82c88dcf7b..294e218009 100644
--- a/include/mbedtls/error.h
+++ b/include/mbedtls/error.h
@@ -102,8 +102,8 @@
  * SSL       5   2 (Started from 0x5F00)
  * CIPHER    6   8 (Started from 0x6080)
  * SSL       6   24 (Started from top, plus 0x6000)
- * SSL       7   29 (Started from 0x7080, gaps at
- *                   0x7500, 0x7580, 0x7800)
+ * SSL       7   30 (Started from 0x7080, gaps at
+ *                   0x7500, 0x7580)
  *
  * Module dependent error code (5 bits 0x.00.-0x.F8.)
  */
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 7187533422..0a31d79cec 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -78,7 +78,7 @@
 #define MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED                 -0x7680  /**< No CA Chain is set, but required to operate. */
 #define MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE                -0x7700  /**< An unexpected message was received from our peer. */
 #define MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE               -0x7780  /**< A fatal alert message was received from our peer. */
-/* NOTE: Error space gap */
+#define MBEDTLS_ERR_SSL_UNRECOGNIZED_NAME                 -0x7800  /**< No server could be identified matching the client's SNI. */
 #define MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY                 -0x7880  /**< The peer notified us that the connection is going to be closed. */
 #define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO               -0x7900  /**< Processing of the ClientHello handshake message failed. */
 #define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO               -0x7980  /**< Processing of the ServerHello handshake message failed. */