diff --git a/ChangeLog b/ChangeLog
index eb3889d..c24aaee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -66,6 +66,8 @@
    * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
    * Fix base64_decode() to return and check length correctly (in case of
      tight buffers)
+   * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
+     by Hui Dong)
 
 = PolarSSL 1.3.7 released on 2014-05-02
 Features