diff --git a/mbedtls_config.h b/mbedtls_config.h
index 7ad7c7e..1a8f9d2 100644
--- a/mbedtls_config.h
+++ b/mbedtls_config.h
@@ -59,8 +59,6 @@
 #undef MBEDTLS_PK_WRITE_C
 #undef MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
 #undef MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
-#undef MBEDTLS_X509_CREATE_C
-#undef MBEDTLS_X509_CRT_WRITE_C
 #undef MBEDTLS_SSL_SRV_C
 */
 
@@ -75,10 +73,10 @@
 #define MBEDTLS_PK_WRITE_C
 #define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
 #define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
-#define MBEDTLS_X509_CREATE_C
-#define MBEDTLS_X509_CRT_WRITE_C
 #define MBEDTLS_SSL_SRV_C
 
+#undef MBEDTLS_X509_CREATE_C
+#undef MBEDTLS_X509_CRT_WRITE_C
 #undef MBEDTLS_X509_CRL_PARSE_C
 #undef MBEDTLS_SSL_SERVER_NAME_INDICATION
 #undef MBEDTLS_SELF_TEST