diff --git a/tiramisu/storage/__init__.py b/tiramisu/storage/__init__.py
index 5b9142d..3d46061 100644
--- a/tiramisu/storage/__init__.py
+++ b/tiramisu/storage/__init__.py
@@ -47,11 +47,13 @@ class Storage:
                  **kwargs: Dict[str, str]) -> None:
         self.storage_type = None
         self.mod = None
-        self.setting(**kwargs)
+        if kwargs:
+            self.setting(**kwargs)
 
     def get(self):
         if self.storage_type is None:
             self.storage_type = environ.get('TIRAMISU_STORAGE', DEFAULT_STORAGE)
+            self.setting()
         if self.mod is None:
             modulepath = '{0}.storage.{1}'.format(MODULE_PATH,
                                                   self.storage_type)