diff --git a/modules/nova/backend.py b/modules/nova/backend.py
index a4e7c3b7..f6160181 100644
--- a/modules/nova/backend.py
+++ b/modules/nova/backend.py
@@ -19,7 +19,7 @@
 
 
 from weboob.capabilities.radio import ICapRadio, Radio, Stream, Emission
-from weboob.capabilities.collection import ICapCollection, CollectionNotFound
+from weboob.capabilities.collection import ICapCollection
 from weboob.tools.backend import BaseBackend
 from weboob.tools.browser import BaseBrowser, BasePage, BrowserUnavailable
 
diff --git a/modules/ouifm/backend.py b/modules/ouifm/backend.py
index b0b1d808..649cc8ed 100644
--- a/modules/ouifm/backend.py
+++ b/modules/ouifm/backend.py
@@ -19,7 +19,7 @@
 
 
 from weboob.capabilities.radio import ICapRadio, Radio, Stream, Emission
-from weboob.capabilities.collection import ICapCollection, CollectionNotFound
+from weboob.capabilities.collection import ICapCollection
 from weboob.tools.backend import BaseBackend
 from weboob.tools.browser import StandardBrowser
 
diff --git a/weboob/capabilities/bank.py b/weboob/capabilities/bank.py
index d9c712a4..374ab3e9 100644
--- a/weboob/capabilities/bank.py
+++ b/weboob/capabilities/bank.py
@@ -21,7 +21,7 @@
 from datetime import datetime, date
 
 from .base import CapBaseObject
-from .collection import ICapCollection, CollectionNotFound
+from .collection import ICapCollection
 
 
 __all__ = ['Account', 'AccountNotFound', 'TransferError', 'ICapBank', 'Transaction']
diff --git a/weboob/capabilities/bill.py b/weboob/capabilities/bill.py
index 442f51fb..cb1ed357 100644
--- a/weboob/capabilities/bill.py
+++ b/weboob/capabilities/bill.py
@@ -19,7 +19,7 @@
 
 from datetime import datetime, date
 from .base import CapBaseObject
-from .collection import ICapCollection, CollectionNotFound
+from .collection import ICapCollection
 
 
 __all__ = ['Subscription', 'SubscriptionNotFound', 'ICapBill', 'Detail']
diff --git a/weboob/capabilities/library.py b/weboob/capabilities/library.py
index e0ede1bd..21cf3ace 100644
--- a/weboob/capabilities/library.py
+++ b/weboob/capabilities/library.py
@@ -19,7 +19,7 @@
 
 from datetime import datetime, date
 
-from .collection import ICapCollection, CollectionNotFound
+from .collection import ICapCollection
 from .base import CapBaseObject