diff --git a/cinder/volume/drivers/emc/emc_vmax_masking.py b/cinder/volume/drivers/emc/emc_vmax_masking.py
index f62a141eeeb..b3b2b98b73e 100644
--- a/cinder/volume/drivers/emc/emc_vmax_masking.py
+++ b/cinder/volume/drivers/emc/emc_vmax_masking.py
@@ -1096,7 +1096,7 @@ class EMCVMAXMasking(object):
         groups = conn.AssociatorNames(
             maskingViewInstance,
             ResultClass='CIM_DeviceMaskingGroup')
-        if groups[0] > 0:
+        if len(groups) > 0:
             foundStorageGroupInstanceName = groups[0]
 
         return foundStorageGroupInstanceName
diff --git a/tests-py3.txt b/tests-py3.txt
index 3af4a71723a..18edc1ea253 100644
--- a/tests-py3.txt
+++ b/tests-py3.txt
@@ -56,6 +56,7 @@ cinder.tests.unit.test_dellsc
 cinder.tests.unit.test_dellscapi
 cinder.tests.unit.test_dothill
 cinder.tests.unit.test_drbdmanagedrv
+cinder.tests.unit.test_emc_vmax
 cinder.tests.unit.test_emc_vnxdirect
 cinder.tests.unit.test_emc_xtremio
 cinder.tests.unit.test_eqlx