diff --git a/work.py b/work.py
index cdb95a0708..522df2c0d9 100644
--- a/work.py
+++ b/work.py
@@ -419,8 +419,6 @@ class Work(sequence_ordered(), ModelSQL, ModelView):
 
     @classmethod
     def copy(cls, project_works, default=None):
-        TimesheetWork = Pool().get('timesheet.work')
-
         if default is None:
             default = {}