diff --git a/cinder/tests/unit/test_tintri.py b/cinder/tests/unit/test_tintri.py
index e9781f53b7d..c4abe165db1 100644
--- a/cinder/tests/unit/test_tintri.py
+++ b/cinder/tests/unit/test_tintri.py
@@ -245,3 +245,9 @@ class TintriDriverTestCase(test.TestCase):
         volume = fake_volume.fake_volume_obj(self.context)
         volume.provider_location = self._provider_location
         self._driver.unmanage(volume)
+
+    def test_retype(self):
+        volume = fake_volume.fake_volume_obj(self.context)
+        retype, update = self._driver.retype(None, volume, None, None, None)
+        self.assertTrue(retype)
+        self.assertIsNone(update)
diff --git a/cinder/volume/drivers/tintri.py b/cinder/volume/drivers/tintri.py
index 4ca21b0885a..0997668303f 100644
--- a/cinder/volume/drivers/tintri.py
+++ b/cinder/volume/drivers/tintri.py
@@ -704,6 +704,14 @@ class TintriDriver(driver.ManageableVD,
         raise exception.ManageExistingInvalidReference(
             existing_ref=vol_ref, reason=_('Volume not found.'))
 
+    def retype(self, context, volume, new_type, diff, host):
+        """Retype from one volume type to another.
+
+        At this point Tintri VMstore does not differentiate between
+        volume types on the same array. This is a no-op for us.
+        """
+        return True, None
+
 
 class TClient(object):
     """REST client for Tintri storage."""