diff --git a/openmc/lattice.py b/openmc/lattice.py
index 3bb6e825e..be5f22db9 100644
--- a/openmc/lattice.py
+++ b/openmc/lattice.py
@@ -56,11 +56,11 @@ class Lattice(object):
             return False
         elif self.name != other.name:
             return False
-        elif self.pitch != other.pitch:
+        elif np.any(self.pitch != other.pitch):
             return False
         elif self.outer != other.outer:
             return False
-        elif self.universes != other.universes:
+        elif np.any(self.universes != other.universes):
             return False
         else:
             return True
@@ -533,7 +533,7 @@ class RectLattice(Lattice):
             return False
         elif self.shape != other.shape:
             return False
-        elif self.lower_left != other.lower_left:
+        elif np.any(self.lower_left != other.lower_left):
             return False
         else:
             return True
diff --git a/openmc/universe.py b/openmc/universe.py
index e69bbd7c4..006a77a54 100644
--- a/openmc/universe.py
+++ b/openmc/universe.py
@@ -76,17 +76,10 @@ class Universe(object):
             return False
         elif self.name != other.name:
             return False
-        elif len(self.cells) != len(other.cells):
+        elif dict.__eq__(self.cells, other.cells):
             return False
-
-        # Check each cell
-        for cell_id in self.cells:
-            if cell_id not in other.cells:
-                return False
-            if self.cells[cell_id] != other.cells[cell_id]:
-                return False
-
-        return True
+        else:
+            return True
 
     def __ne__(self, other):
         return not self == other