diff --git a/ChangeLog b/ChangeLog
index 2a079221..a0d5777b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -12,6 +12,8 @@
           (thanks to Matthias Rieber).
 - TI-16   Should handle case where taskwarrior hook is used before timew
           (thanks to Aaron Curtis).
+- TI-17   ids of tracked activities should not change when editing
+          (thanks to lumbric).
 - TI-20   Week number does not agree with Taskwarrior
           (thanks to Dirk Deimeke).
 - TI-22   The 'day' chart crashes if there is an open interval and no others