diff --git a/CHANGES/v2.3.txt b/CHANGES/v2.3.txt
index ba5b6c5bb018b90237b0eedd9f35a269e6a3a0f9..367b65ae8a1a42f2570aaea6a7afae6383e3b984 100644
--- a/CHANGES/v2.3.txt
+++ b/CHANGES/v2.3.txt
@@ -207,6 +207,7 @@ For developers:
 
 For users:
 - GROMACS patch updated to gromacs-2016.4
+- Solved a bug in \ref ERMSD leading to incorrect results when using non-default length units (e.g. with `UNITS LENGTH=A`).
 
 For developers:
 - Regtest script also reports when exitcode different from zero is returned.