--- a/contrib/packaging/debian/rules	Wed Oct 23 16:35:27 2019 +0200
+++ b/contrib/packaging/debian/rules	Wed Oct 23 17:18:57 2019 +0200
@@ -25,7 +25,7 @@
 	$(MAKE) all
 	$(MAKE) -C contrib/chg all
 
-override_dh_install:
+override_dh_auto_install:
 	python3 setup.py install --root "$(CURDIR)"/debian/mercurial --install-layout=deb
 	# chg
 	make -C contrib/chg \