diff --git a/CHANGES/v2.5.md b/CHANGES/v2.5.md
index 8081f483b003f990d85d32742e60984540624b4a..917b53e03481c44e7c1fad186b3d9995f24160cf 100644
--- a/CHANGES/v2.5.md
+++ b/CHANGES/v2.5.md
@@ -43,6 +43,7 @@ Changes from version 2.4 which are relevant for users:
   - Removed the patch for GMX 5.1.4
   - \ref RMSD calculation has been optimized. This should positively affect the performances of CVs where
      many RMSDs are computed on small groups of atoms, such as secondary structure variables.
+  - In \ref METAD, when using a bias factor equal to one (no bias) the `rct` component is set to zero rather than to one.
 
 Changes from version 2.4 which are relevant for developers:
 - Code has been cleanup up replacing a number of pointers with `std::unique_ptr`. All `delete` statements