diff --git a/reclass/datatypes/entity.py b/reclass/datatypes/entity.py
index 2606e9e..ed10e0d 100644
--- a/reclass/datatypes/entity.py
+++ b/reclass/datatypes/entity.py
@@ -59,7 +59,8 @@
         self._parameters.interpolate()
 
     def __eq__(self, other):
-        return self._applications == other._applications \
+        return isinstance(other, type(self)) \
+                and self._applications == other._applications \
                 and self._classes == other._classes \
                 and self._parameters == other._parameters \
                 and self._name == other._name
diff --git a/reclass/datatypes/tests/test_entity.py b/reclass/datatypes/tests/test_entity.py
index d4f85b3..fdfb8f4 100644
--- a/reclass/datatypes/tests/test_entity.py
+++ b/reclass/datatypes/tests/test_entity.py
@@ -68,6 +68,13 @@
         for i in instances:
             i.__eq__.assert_called_once_with(i)
 
+    def test_unequal_types(self, **types):
+        instances = self._make_instances(**types)
+        self.assertNotEqual(Entity(*instances, name='empty'),
+                            None)
+        for i in instances:
+            self.assertEqual(i.__eq__.call_count, 0)
+
     def _test_constructor_wrong_types(self, which_replace, **types):
         instances = self._make_instances(**types)
         instances[which_replace] = 'Invalid type'