diff --git a/Packaging.md b/Packaging.md
index e82daf0..316bb2b 100644
--- a/Packaging.md
+++ b/Packaging.md
@@ -16,7 +16,7 @@ We want to package Tahoe for people to download and use and we want to use
 deb http://allmydata.org/debian  $DIST  main tahoe
 ```
 
- * this covers all major debian-derived platforms released in the last year.
+ * this covers all major debian-derived platforms released in the last year.  (Note from Zooko: I guess this definition of "major" is "Debian and Ubuntu".  Distrowatch.org's definition of "major" is [its Top-Ten page](http://distrowatch.org/dwres.php?resource=major), which also includes Mepis and Knoppix.  :-)  Anyway, "Debian and Ubuntu" is a fine definition of "major" as far as I'm concerned.)
 
 For libraries that Tahoe uses, we have these desiderata: