diff --git a/distribution/changelog.txt b/distribution/changelog.txt
index 9575fac328..d725e11e5e 100644
--- a/distribution/changelog.txt
+++ b/distribution/changelog.txt
@@ -24,6 +24,7 @@
 - Fix: [#5998] Staff not getting paid / no loan interest.
 - Fix: [#6026] 'Select ride to advertise' dropdown does not display all items.
 - Fix: [#6052] Unable to place entrance/exit on certain ride types.
+- Improved: [#2223] Change mountain tool to ignore higher surrounding tiles.
 - Improved: [#4301] Leading and trailing whitespace in player name is now removed.
 - Improved: [#5859] OpenGL rendering performance
 - Improved: [#5863] Switching drawing engines no longer requires the application to restart.