diff --git a/doc/Changelog b/doc/Changelog
index 6392055cd..0b4efc9ff 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,3 +1,7 @@
+3 April 2024: Wouter
+	- Fix #1040: fix heap-buffer-overflow issue in function cfg_mark_ports
+	  of file util/config_file.c.
+
 28 March 2024: Wouter
 	- Fix #1034: DoT forward-zone via unbound-control.
 	- Fix for crypto related failures to have a better error string.