diff -r 8f16920a4cc6 -r 65990ae9a70d debian/rules
--- a/debian/rules	Thu Dec 17 13:44:30 2015 +0100
+++ b/debian/rules	Thu Dec 17 13:45:29 2015 +0100
@@ -41,7 +41,7 @@
 
 	touch $@
 
-clean:
+clean:	Makefile
 	dh_testdir
 	dh_testroot
 	rm -f build-stamp