--- a/Makefile	Thu Dec 06 16:23:20 2018 +0100
+++ b/Makefile	Thu Dec 06 16:34:22 2018 +0100
@@ -73,6 +73,7 @@
 	$(MAKE) -C doc clean
 	$(MAKE) -C contrib/chg distclean
 	rm -rf rust/target
+	rm -f mercurial/rustext.so
 
 clean: cleanbutpackages
 	rm -rf packages