diff --git a/delfin/drivers/dell_emc/vmax/client.py b/delfin/drivers/dell_emc/vmax/client.py
index d6b6796ae..77890dc75 100644
--- a/delfin/drivers/dell_emc/vmax/client.py
+++ b/delfin/drivers/dell_emc/vmax/client.py
@@ -150,7 +150,7 @@ def get_storage_capacity(self, storage_id):
                 raw_capacity = int(total_raw * units.Gi)
                 subscribed_capacity = int(subscribed_cap * units.Ti)
 
-            return total_capacity, used_capacity, free_capacity,\
+            return total_capacity, used_capacity, free_capacity, \
                 raw_capacity, subscribed_capacity
 
         except Exception:
diff --git a/delfin/drivers/dell_emc/vmax/vmax.py b/delfin/drivers/dell_emc/vmax/vmax.py
index 43b75b22d..7d520d4b2 100644
--- a/delfin/drivers/dell_emc/vmax/vmax.py
+++ b/delfin/drivers/dell_emc/vmax/vmax.py
@@ -52,7 +52,7 @@ def get_storage(self, context):
         display_name = array_details['display_name']
 
         # Get Storage details for capacity info
-        total_capacity, used_capacity, free_capacity,\
+        total_capacity, used_capacity, free_capacity, \
             raw_capacity, subscribed_capacity = \
             self.client.get_storage_capacity(storage_id)