diff --git a/Makefile b/Makefile
index 63522ac..328553c 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,8 @@ VERSION=`git describe | sed 's/^debian\///' `
 DIST_FILES = \
 	keys \
 	jessie \
-	stretch
+	stretch \
+	Makefile
 
 output/entrouvert-archive.gpg: keys/0x*
 	cat keys/0x* > output/entrouvert-archive.gpg
@@ -15,6 +16,7 @@ output/entrouvert-archive.gpg: keys/0x*
 clean:
 	rm -rf sdist
 	rm -rf output/*
+	test -d output || mkdir output
 
 release:
 	gbp dch --release --commit