diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index a60db7e..1ab0ade 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1683,7 +1683,7 @@
  *
  * Uncomment to enable invasive tests.
  */
-//#define MBEDTLS_TEST_HOOKS
+#define MBEDTLS_TEST_HOOKS
 
 /**
  * \def MBEDTLS_THREADING_ALT