diff --git a/src/utils/openmc/opencg_compatible.py b/src/utils/openmc/opencg_compatible.py
index 909a6ab589..1c65d285cf 100644
--- a/src/utils/openmc/opencg_compatible.py
+++ b/src/utils/openmc/opencg_compatible.py
@@ -681,7 +681,7 @@ def get_opencg_lattice(openmc_lattice):
     # Create an OpenCG Lattice to represent this OpenMC Lattice
     name = openmc_lattice._name
     dimension = openmc_lattice._dimension
-    width = openmc_lattice._width
+    pitch = openmc_lattice._pitch
     lower_left = openmc_lattice._lower_left
     universes = openmc_lattice._universes
 
@@ -704,11 +704,11 @@ def get_opencg_lattice(openmc_lattice):
 
     opencg_lattice = opencg.Lattice(lattice_id, name)
     opencg_lattice.setDimension(dimension)
-    opencg_lattice.setWidth(width)
+    opencg_lattice.setWidth(pitch)
     opencg_lattice.setUniverses(universe_array)
 
     offset = np.array(lower_left, dtype=np.float64) - \
-                     ((np.array(width, dtype=np.float64) * \
+                     ((np.array(pitch, dtype=np.float64) * \
                        np.array(dimension, dtype=np.float64))) / -2.0
     opencg_lattice.setOffset(offset)
 
diff --git a/src/utils/openmc/summary.py b/src/utils/openmc/summary.py
index b339dd3384..9bfa50711d 100644
--- a/src/utils/openmc/summary.py
+++ b/src/utils/openmc/summary.py
@@ -352,7 +352,7 @@ class Summary(object):
             lattice_type = self._f['geometry/lattices'][key]['type'][...][0]
 
             if lattice_type == 'rectangular':
-                dimension = self._f['geometry/lattices'][key]['dimension'][...]
+                dimension = self._f['geometry/lattices'][key]['n_cells'][...]
                 lower_left = \
                      self._f['geometry/lattices'][key]['lower_left'][...]  
                 pitch = self._f['geometry/lattices'][key]['pitch'][...]