diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cf5c12e..30414b63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ Features
 Bug Fixes
 
 - Display characters such as `#\space` correctly when output via `write`.
+- Thanks for Seth Alves, removed unnecessary include of `ck_string.h` which is not provided in older versions of `libck`.
 
 # 0.3.3 - December 19, 2016