diff --git a/CHANGELOG.md b/CHANGELOG.md
index b216972a..559a2d5d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 * Extension: item verification on commandline
 * Improvement: catch lack of support of PERIOD in vobject <= 0.9.9
 * Fix: sharing: backmap of REPORT/PROPPATCH hrefs is now URL-encode-aware (edit of a shared collection failed when the principal contains '@')
+* Workaround: remove trailing spaces on TZID and TZNAME appended by buggy Microsoft clients
 
 ## 3.7.5
 * Add: [sharing] conversion_bday_summary_template (customize summary)