diff --git a/ChangeLog b/ChangeLog
index a46100878..18de01521 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -103,6 +103,9 @@ Changes
    * Make it easier to define MBEDTLS_PARAM_FAILED as assert (which config.h
      suggests). #2671
    * Make `make clean` clean all programs always. Fixes #1862.
+   * Add `reproducible` option to `ssl_client2` and `ssl_server2` to enable
+     test runs without variability. Contributed by Philippe Antoine (Catena
+     cyber) in #2681.
 
 = mbed TLS 2.17.0 branch released 2019-03-19