diff --git a/doc/Changelog b/doc/Changelog
index 72c83d0b5..a225c3181 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -2,6 +2,7 @@
 	- And 1.13.2rc1 became the 1.13.2 with the fix for the python module
 	  build. The current code repository continues with version 1.13.3.
 	- Add test tool readzone to .gitignore.
+	- Merge #521: Update mini_event.c.
 
 5 August 2021: Wouter
 	- Tag for 1.13.2rc1 release.