diff --git a/ChangeLog b/ChangeLog
index cec77d2..13034fd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -57,6 +57,8 @@
    * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
      improve clarity. Fixes #2258.
    * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
+   * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h
+     suggests). #2671
 
 = mbed TLS 2.16.1 branch released 2019-03-19