diff --git a/addons/calendar/calendar.py b/addons/calendar/calendar.py
index 184f9e21d45..25b567a496a 100644
--- a/addons/calendar/calendar.py
+++ b/addons/calendar/calendar.py
@@ -1499,7 +1499,7 @@ class calendar_event(osv.Model):
         for arg in args:
             new_arg = arg
 
-            if arg[0] in ('start_date', 'start_datetime', 'start',) and arg[1] == ">=":
+            if arg[0] in ('stop_date', 'stop_datetime', 'stop',) and arg[1] == ">=":
                 if context.get('virtual_id', True):
                     new_args += ['|', '&', ('recurrency', '=', 1), ('final_date', arg[1], arg[2])]
             elif arg[0] == "id":