diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index c99e8f9..9dd9c4a 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -641,6 +641,9 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
     MBEDTLS_SSL_ENCRYPTED_EXTENSIONS,
     MBEDTLS_SSL_CLIENT_CERTIFICATE_VERIFY,
+#if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
+    MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED,
+#endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
 }
 mbedtls_ssl_states;