diff --git a/test/getvolume_tester.py b/test/getvolume_tester.py
index e6c5279c..957fcab9 100644
--- a/test/getvolume_tester.py
+++ b/test/getvolume_tester.py
@@ -55,7 +55,7 @@ def check_response(self, resp):
                         u'3par_vol_name': data.VOLUME_3PAR_NAME,
                         u'backend': 'DEFAULT',
                         u'compression': None,
-                        u'flash_cache': None,
+                        u'flash_cache': 'false',
                         u'fsMode': None,
                         u'fsOwner': None,
                         u'provisioning': u'thin',