diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 7ce8083d4..252413378 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1637,7 +1637,8 @@
 *
 * Enable support for RFC 8446 TLS 1.3 early data.
 *
-* Requires: MBEDTLS_SSL_PROTO_TLS1_3
+* Requires: MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED or
+*           MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED
 *
 * Comment this to disable support for early data.
 *