diff --git a/MANIFEST.in b/MANIFEST.in
index db8ce7c..fb72116 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,8 +1,9 @@
 recursive-include debian changelog compat control copyright rules
 recursive-include debian *.lintian-overrides *.service
+recursive-include debian/source format
 recursive-include test   README *.py
 recursive-include tls    README *.sh
 prune debian/tmp
 prune debian/msrprelay
 prune debian/python-module-stampdir
 include config.ini.sample MANIFEST.in LICENSE INSTALL Changelog