diff --git a/pkgs/by-name/vi/visual-hexdiff/package.nix b/pkgs/by-name/vi/visual-hexdiff/package.nix
index bcc3d2bfb660..af4b81f8a5e8 100644
--- a/pkgs/by-name/vi/visual-hexdiff/package.nix
+++ b/pkgs/by-name/vi/visual-hexdiff/package.nix
@@ -21,6 +21,7 @@ stdenv.mkDerivation {
 
   patches = [
     # Some changes the debian/ubuntu developers made over the original source code
+    # See https://changelogs.ubuntu.com/changelogs/pool/universe/h/hexdiff/hexdiff_0.0.53-0ubuntu4/changelog
     (fetchpatch {
       url = "mirror://ubuntu/pool/universe/h/hexdiff/hexdiff_0.0.53-0ubuntu4.diff.gz";
       sha256 = "sha256-X5ONNp9jeACxsulyowDQJ6REX6bty6L4in0/+rq8Wz4=";