diff --git a/MANIFEST.in b/MANIFEST.in
index df908110a770c5279991701bcc8183ebb619e8c8..9f4508493e294e9c02cc68b94060b2605d6dca60 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -6,6 +6,7 @@ include ChangeLog
 include desktop/*
 include icons/*
 include man/*
+include build.mk
 recursive-include contrib *
 recursive-include weboob/applications Makefile
 recursive-include weboob/tools/application Makefile