diff --git a/doc/changelog.qbk b/doc/changelog.qbk
index 628e5ce..f5dcd63 100644
--- a/doc/changelog.qbk
+++ b/doc/changelog.qbk
@@ -7,6 +7,13 @@
 
 [section Changelog]
 
+[section unreleased]
+Not yet released
+
+* Fixed missing thread synchronization in mock::sequence
+
+[endsect]
+
 [section 1.2.7]
 Released 25 April 2015