diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 116a164c9738..c7e3c78cbe3a 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1974,7 +1974,7 @@
  *
  * Comment this macro to disable support for key export
  */
-#define MBEDTLS_SSL_EXPORT_KEYS
+//#define MBEDTLS_SSL_EXPORT_KEYS
 
 /**
  * \def MBEDTLS_SSL_SERVER_NAME_INDICATION