diff --git a/CHANGES/v2.1.txt b/CHANGES/v2.1.txt
index 8d5e12da347a4f3d754e2266c37f4ab33d1df8d7..89049f3846406577c677c95bc205a98b308cf6cc 100644
--- a/CHANGES/v2.1.txt
+++ b/CHANGES/v2.1.txt
@@ -19,7 +19,7 @@ Changes from version 2.0 which are relevant for users:
   - \ref COORDINATION now skips pairs of one atom with itself.
   - Labels of quantities calculated by \ref BIASVALUE have changed from <i>label</i>.bias.<i>argname</i> to <i>label</i>.<i>argname</i>_bias, which is more consistent with steered MD
   - Labels of quantities calculated by \ref ABMD have change from <i>label</i>.min_<i>argname</i> to <i>label</i>.<i>argname</i>_min, which is more consistent with steered MD
-  - Labels of quantities calculated by \ref PIECEWISE have change from <i>label</i>.<i>argnumber/i> to <i>label</i>.<i>argname</i>_pfunc, which is more consistent with steered MD
+  - Labels of quantities calculated by \ref PIECEWISE have change from <i>label</i>.<i>argnumber</i> to <i>label</i>.<i>argname</i>_pfunc, which is more consistent with steered MD
   - For multicolvars components calculated with LESS_THAN and MORE_THAN keywords are now labelled lessthan and morethan. This change is necessary as the underscore
 character now has a special usage in component names.
   - In \ref CONTACTMAP components are now labelled <i>label</i>.contact-\f$n\f$.