diff --git a/lib/xos-genx/Makefile b/lib/xos-genx/Makefile
index 898f154..feee40e 100644
--- a/lib/xos-genx/Makefile
+++ b/lib/xos-genx/Makefile
@@ -1,3 +1,3 @@
 test:
-	nosetests -s -v --with-id
+	nosetests -s -v --with-id --with-coverage --cover-html --cover-erase --cover-xml --cover-package="xosgenx"