diff --git a/openmc/summary.py b/openmc/summary.py
index 2ab29c00a4..6b8471977e 100644
--- a/openmc/summary.py
+++ b/openmc/summary.py
@@ -97,16 +97,17 @@ class Summary(object):
                 self._macroscopics = name.decode()
 
     def _read_geometry(self):
-        if "dagmc" in self._f['geometry'].attrs.keys():
-            return
 
-        # Read in and initialize the Materials and Geometry
+        # Read in and initialize the Materials
         self._read_materials()
-        self._read_surfaces()
-        cell_fills = self._read_cells()
-        self._read_universes()
-        self._read_lattices()
-        self._finalize_geometry(cell_fills)
+
+        # Read native geometry only
+        if "dagmc" not in self._f['geometry'].attrs.keys():
+            self._read_surfaces()
+            cell_fills = self._read_cells()
+            self._read_universes()
+            self._read_lattices()
+            self._finalize_geometry(cell_fills)
 
     def _read_materials(self):
         for group in self._f['materials'].values():