diff --git a/doc/changelog.txt b/doc/changelog.txt
index f0344ef80..059f2fa00 100644
--- a/doc/changelog.txt
+++ b/doc/changelog.txt
@@ -8,6 +8,7 @@ Features:
 
 Changes:
 - comics: CyanideAndHappiness image filename now has the strip number prefixed.
+- installation: The source package is now in .tar.xz format.
 
 Fixes:
 - scripts: Ensure the generated comic names do not exceed 100 characters so