diff --git a/Makefile b/Makefile
index b2301d6..2b090a3 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ test:	build
 
 ftest:	build
 	xhost local:root; docker run --rm -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=unix$(DISPLAY) -v $(CURDIR):/opt/nd2reader -v ~/nd2s:/var/nd2s -it jimrybarski/nd2reader python3.4 /opt/nd2reader/ftest.py
-	docker run --rm -v $(CURDIR):/opt/nd2reader -v ~/nd2s:/var/nd2s -it jimrybarski/nd2reader python2.7 /opt/nd2reader/ftest.py
+	xhost local:root; docker run --rm -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=unix$(DISPLAY) -v $(CURDIR):/opt/nd2reader -v ~/nd2s:/var/nd2s -it jimrybarski/nd2reader python2.7 /opt/nd2reader/ftest.py
 	
 publish:
 	python setup.py sdist upload -r pypi
diff --git a/functional_tests/FYLM141111001.py b/functional_tests/FYLM141111001.py
index 9eaad52..d1e857a 100644
--- a/functional_tests/FYLM141111001.py
+++ b/functional_tests/FYLM141111001.py
@@ -4,6 +4,7 @@ run them unless you're Jim Rybarski.
 
 """
 from nd2reader import Nd2
+from skimage import io
 import numpy as np
 from datetime import datetime
 import unittest
@@ -227,3 +228,13 @@ class FYLM141111Tests(unittest.TestCase):
         mean = np.mean(self.nd2[0])
         self.assertEqual(type(mean), np.float64)
         self.assertAlmostEqual(expected_mean, mean)
+
+    def test_subtract_images(self):
+        # just to prove we can really treat Image like an array
+        diff = self.nd2[0] - self.nd2[2]
+        self.assertTrue(np.any(diff))
+
+    def test_show(self):
+        io.imshow(self.nd2[0])
+        io.show()
+        self.assertTrue(True)
diff --git a/nd2reader/__init__.py b/nd2reader/__init__.py
index 5e6282a..6184c21 100644
--- a/nd2reader/__init__.py
+++ b/nd2reader/__init__.py
@@ -1,3 +1,3 @@
 from nd2reader.main import Nd2
 
-__version__ = '2.1.2'
+__version__ = '2.1.3'
diff --git a/nd2reader/model/image.py b/nd2reader/model/image.py
index 594b0b0..eea244e 100644
--- a/nd2reader/model/image.py
+++ b/nd2reader/model/image.py
@@ -19,11 +19,11 @@ class Image(np.ndarray):
         self._channel = None
         self._z_level = None
 
-    def __array_wrap__(self, obj):
+    def __array_wrap__(self, obj, *args):
         if len(obj.shape) == 0:
             return obj[()]
         else:
-            return np.ndarray.__array_wrap__(obj)
+            return obj
 
     def add_params(self, index, timestamp, frame_number, field_of_view, channel, z_level):
         """
diff --git a/setup.py b/setup.py
index 0ae1b10..7782e75 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup
 
-VERSION = '2.1.2'
+VERSION = '2.1.3'
 
 if __name__ == '__main__':
     setup(