diff --git a/ChangeLog b/ChangeLog
index 7248530..ca61c33 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -30,6 +30,8 @@
      the mbedtls_cipher_update() documentation. Contributed by Andy Leiserson.
    * Fix overriding and ignoring return values when parsing and writing to
      a file in pk_sign program. Found by kevlut in #1142.
+   * Fix invalid buffer sizes passed to zlib during record compression and
+     decompression.
 
 Changes
    * Support cmake build where Mbed TLS is a subproject. Fix