diff --git a/Changelog b/Changelog
index 0b54b667..efb98d92 100644
--- a/Changelog
+++ b/Changelog
@@ -1,4 +1,5 @@
 ### Added
+- Fix to PTProphet mod_nterm_mass change when using TMT-16 plex.
 
 ### Changed
 - Updated parallelization for PeptideProphet.