diff --git a/ChangeLog b/ChangeLog
index a26bf3b..127a699 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,10 @@
    * Add CCM module and cipher mode to Cipher Layer
    * Support for CCM and CCM_8 ciphersuites
 
+Changes
+   * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
+     required on some platforms (e.g. OpenBSD)
+
 Bugfix
    * Fix in debug_print_msg()
    * Enforce alignment in the buffer allocator even if buffer is not aligned