diff --git a/qubes/storage/__init__.py b/qubes/storage/__init__.py
index b8e5f5b2..59d0d210 100644
--- a/qubes/storage/__init__.py
+++ b/qubes/storage/__init__.py
@@ -874,7 +874,7 @@ def driver_parameters(name):
     return [p for p in params if p not in ignored_params]
 
 
-def isodate(seconds=time.time()):
+def isodate(seconds):
     ''' Helper method which returns an iso date '''
     return datetime.utcfromtimestamp(seconds).isoformat("T")