diff --git a/pms/models/pms_reservation.py b/pms/models/pms_reservation.py
index 2bc22d09f..4df0b83cc 100644
--- a/pms/models/pms_reservation.py
+++ b/pms/models/pms_reservation.py
@@ -1123,7 +1123,7 @@ class PmsReservation(models.Model):
         # REVIEW: Updating preferred_room_id here avoids cyclical dependency
         for reservation in self:
             room_ids = reservation.reservation_line_ids.mapped("room_id.id")
-            if len(room_ids) > 1:
+            if len(room_ids) > 1 and not self._context.get("not_split"):
                 reservation.splitted = True
                 reservation.preferred_room_id = False
             else:
diff --git a/pms/models/pms_reservation_line.py b/pms/models/pms_reservation_line.py
index d0533224d..3d5e2b641 100644
--- a/pms/models/pms_reservation_line.py
+++ b/pms/models/pms_reservation_line.py
@@ -199,7 +199,9 @@ class PmsReservationLine(models.Model):
                     manual_assigned = True
                 # if there is availability for the entire stay
                 if rooms_available:
-
+                    # Avoid that reservation._compute_splitted set the
+                    # reservation like splitted in intermediate calculations
+                    reservation = reservation.with_context(not_split=True)
                     # if the reservation has a preferred room
                     if reservation.preferred_room_id: