diff --git a/CHANGES.md b/CHANGES.md
index 46a6856ecb..44db2c09f6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -19,6 +19,7 @@
 * Compiler: warn on joo_global_object
 * Compiler: revisit static env handling (#1708)
 * Compiler: Emit index map when linking multiple js files together (#1714)
+* Compiler: improved source map generation (#1716)
 * Runtime: change Sys.os_type on windows (Cygwin -> Win32)
 * Runtime: backtraces are really expensive, they need to be be explicitly
   requested at compile time (--enable with-js-error) or at startup (OCAMLRUNPARAM=b=1)