diff --git a/pms_api_rest/services/pms_calendar_service.py b/pms_api_rest/services/pms_calendar_service.py
index 81cba0ec7..0623dfbc7 100644
--- a/pms_api_rest/services/pms_calendar_service.py
+++ b/pms_api_rest/services/pms_calendar_service.py
@@ -183,12 +183,6 @@ class PmsCalendarService(Component):
                     ("room_id", "=", swap_info.roomId),
                 ]
             )
-            reservation_line.occupies_availability = False
-            affected_line.occupies_availability = False
-
-            reservation_line.flush()
-            affected_line.flush()
-
             reservation_line.with_context(
                 avoid_availability_check=True
             ).room_id = swap_info.roomId
@@ -196,12 +190,6 @@ class PmsCalendarService(Component):
                 avoid_availability_check=True
             ).room_id = old_room_id
 
-            reservation_line.occupies_availability = True
-            affected_line.occupies_availability = True
-
-            reservation_line._compute_occupies_availability()
-            affected_line._compute_occupies_availability()
-
     @restapi.method(
         [
             (