diff --git a/openmc/mgxs/__init__.py b/openmc/mgxs/__init__.py
index 91eb811f4..4fcf8b6ae 100644
--- a/openmc/mgxs/__init__.py
+++ b/openmc/mgxs/__init__.py
@@ -1,3 +1,3 @@
-from groups import EnergyGroups
-from library import Library
-from mgxs import *
+from openmc.mgxs.groups import EnergyGroups
+from openmc.mgxs.library import Library
+from openmc.mgxs.mgxs import *