diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index eea7f09..3df1677 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1581,7 +1581,9 @@
 /**
  * \def MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS
  *
- * Default number of NewSessionTicket. This is not used in TLS 1.2.
+ * Default number of NewSessionTicket messages to be sent by a TLS 1.3 server
+ * after handshake completion. This is not used in TLS 1.2 and relevant only if
+ * the MBEDTLS_SSL_SESSION_TICKETS option is enabled.
  *
  */
 #define MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS 1