diff --git a/cinder/tests/unit/volume/drivers/dell_emc/vmax/test_vmax.py b/cinder/tests/unit/volume/drivers/dell_emc/vmax/test_vmax.py
index abed0b350e9..e7e361a1820 100644
--- a/cinder/tests/unit/volume/drivers/dell_emc/vmax/test_vmax.py
+++ b/cinder/tests/unit/volume/drivers/dell_emc/vmax/test_vmax.py
@@ -2418,12 +2418,18 @@ class VMAXRestTest(test.TestCase):
             init_list = self.rest.get_initiator_list(array)
             self.assertIsNotNone(init_list)
 
-    def test_get_initiator_list_none(self):
+    def test_get_initiator_list_empty(self):
         array = self.data.array
         with mock.patch.object(self.rest, 'get_resource', return_value={}):
             init_list = self.rest.get_initiator_list(array)
             self.assertEqual([], init_list)
 
+    def test_get_initiator_list_none(self):
+        array = self.data.array
+        with mock.patch.object(self.rest, 'get_resource', return_value=None):
+            init_list = self.rest.get_initiator_list(array)
+            self.assertIsNotNone(init_list)
+
     def test_get_initiator_group_from_initiator(self):
         initiator = self.data.wwpn1
         ref_group = self.data.initiatorgroup_name_f
diff --git a/cinder/volume/drivers/dell_emc/vmax/rest.py b/cinder/volume/drivers/dell_emc/vmax/rest.py
index 4c576681a02..2ff5eb0be9e 100644
--- a/cinder/volume/drivers/dell_emc/vmax/rest.py
+++ b/cinder/volume/drivers/dell_emc/vmax/rest.py
@@ -1335,7 +1335,7 @@ class VMAXRest(object):
                                       params=params, version=version)
         try:
             init_list = init_dict['initiatorId']
-        except KeyError:
+        except (KeyError, TypeError):
             init_list = []
         return init_list