--- a/cubicweb/server/__init__.py	Fri Mar 10 11:55:16 2017 +0100
+++ b/cubicweb/server/__init__.py	Fri Mar 10 11:25:24 2017 +0100
@@ -39,12 +39,6 @@
 from cubicweb.appobject import AppObject
 
 
-class ShuttingDown(BaseException):
-    """raised when trying to access some resources while the repository is
-    shutting down. Inherit from BaseException so that `except Exception` won't
-    catch it.
-    """
-
 # server-side services #########################################################
 
 class Service(AppObject):