diff --git a/CHANGES/v2.3.txt b/CHANGES/v2.3.txt
index b2586b9e3053fa92aa0801743ce246c9b56aa394..184246aa6494d60711c98e8d5de4217728b80eb4 100644
--- a/CHANGES/v2.3.txt
+++ b/CHANGES/v2.3.txt
@@ -161,6 +161,7 @@ See branch \branch{v2.3} on git repository.
 - Fixed bug in \ref HISTOGRAM that causes nans when using KERNEL=DISCRETE option
 - Fixed a bug in the parser related to braces, see \issue{229}
 - Fixed a bug that appeared when using \ref Q3, \ref Q4 and \ref Q6 with LOWEST or HIGHEST flag
+- Fixed a bug that appears when you use \ref MFILTER_LESS as input to \ref COORDINATIONNUMBER with SPECIESA and SPECIESB flags
 
 For developers:
 - plumedcheck validation has been made stricter. All the checks are now described in the developer manual.