diff --git a/CHANGELOG b/CHANGELOG
index a82c66844..c29a6c588 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -31,7 +31,6 @@ Added untracked files which should be ignored to .gitignore (#173)
 Removed ads/sync.html (#182)
 Updated ads/async.html (#183)
 Added pageUnloadTimer option to argmap (#171)
-Added event vendor as argument to trackUnstructEvent (#157)
 Removed type hints from unstructured events and custom contexts (#163)
 Added hardcoded schema to custom context arrays (#199)
 Added hardcoded schema to unstructured events (#196)