diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 4ab5f8ca8196c8531c6322bb2594aafd382015b8..756433b61f7255ab276d3789f2085a8eaef12f0d 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -13,7 +13,7 @@ Changes in Release 2.x
    with the max_symmetries argument. Compounds with too many symmetries will
    be treated like they are not matching, and reported as unassigned with the
    new 'symmetries' reason. This allows avoiding extremely long execution
-   times with some higly symmetrical ligands.
+   times with some highly symmetrical ligands.
  * Several bug fixes and improvements.
 
 Changes in Release 2.6.1