diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index debb1cc..ad5fbc5 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1252,6 +1252,10 @@
 
 #endif /*  MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS */
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+    uint32_t MBEDTLS_PRIVATE(max_early_data_size);          /*!< max_early_data_size of ticket */
+#endif
+
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
     int MBEDTLS_PRIVATE(encrypt_then_mac);       /*!< flag for EtM activation                */
 #endif