diff --git a/doc/dev.md b/doc/dev.md
index ae7f500f..050bbef4 100644
--- a/doc/dev.md
+++ b/doc/dev.md
@@ -49,11 +49,13 @@ Then run:
 
     script/compile
 
-
 ## Binary size
 
-Keep notes here about how adding libraries and classes to Babashka grows the binary size.
+Keep notes here about how adding libraries and classes to Babashka affects the binary size.
 
-On macOS:
+<!-- On macOS: -->
 
-2020/01/08, 303ca9e825d76a4a45bc4240a59139d342c13964: 36.9MB
+<!-- 2020/01/08, ..., 38.7mb / 11.3mb zipped -->
+<!-- Added: `clojure.data.xml`. Growth: 1.8mb / ... -->
+
+2020/01/08, 303ca9e825d76a4a45bc4240a59139d342c13964: 36.9mb / 10.8mb zipped.