diff --git a/CHANGELOG.md b/CHANGELOG.md
index e09d135c..1afa333b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ Features
 - During CPS optimization allow inlining of operations on global variables that are mutated in other top-level functions.
 - Improved loop detection during CPS optimization phase.
 - Allow optimizing-out of basic `if` expressions of the form `(if (pred? ...) #t #f)` into `(pred? ...)`.
-- Perform slightly faster type checking for vector and bytevector access functions.
+- Perform slightly faster type checking for string, vector, and bytevector access functions.
 
 Bug Fixes