diff --git a/changelog.md b/changelog.md
index c0d7ffa4d5f40cf206bde33944cfad3f0e1aad70..266ff02ce0b872e1a2abb16cac9b6470c434d7fe 100644
--- a/changelog.md
+++ b/changelog.md
@@ -17,6 +17,7 @@ Changes in tpcclib
 - Application tacadd: can combine several files, and added new option -move.
 - Application addvers only refuses to add the same version number again.
 - Application imgprofi can save also z profile.
+- Application fit_h2o: added option -k2.
 - Application imgftac: added new option -integral.
 - Application imgmaxp: added new option -wmax.
 - Application imgqntls: added new option -abs.