diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 928feed04..192ecf15a 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -736,7 +736,7 @@
  *
  * Uncomment this macro to disable the built-in platform entropy functions.
  */
-//#define MBEDTLS_NO_PLATFORM_ENTROPY
+#define MBEDTLS_NO_PLATFORM_ENTROPY
 
 /**
  * \def MBEDTLS_ENTROPY_FORCE_SHA256