diff --git a/weboob/core/bcall.py b/weboob/core/bcall.py
index 1e67db4f..f0599ce4 100644
--- a/weboob/core/bcall.py
+++ b/weboob/core/bcall.py
@@ -24,7 +24,6 @@ from copy import copy
 from threading import Thread, Event, RLock, Timer
 
 from weboob.capabilities.base import CapBaseObject
-from weboob.capabilities.collection import Collection
 from weboob.tools.misc import get_backtrace
 from weboob.tools.log import getLogger
 
@@ -93,7 +92,6 @@ class BackendsCall(object):
             if isinstance(result, CapBaseObject):
                 if self.condition and not self.condition.is_valid(result):
                     return
-            if isinstance(result, (CapBaseObject, Collection)):
                 result.backend = backend.name
             self.responses.append((backend, result))
             self.response_event.set()