diff --git a/account_move_export/models/account_move_export.py b/account_move_export/models/account_move_export.py
index bcfd999..4e57eeb 100644
--- a/account_move_export/models/account_move_export.py
+++ b/account_move_export/models/account_move_export.py
@@ -505,7 +505,10 @@ def _csv_encode(self, tmpfile):
 
     def get_moves(self):
         self.ensure_one()
-        assert self.filter_type == "custom"
+        assert self.filter_type == 'custom'
+        previous_moves = self.env["account.move"].search([("account_move_export_id", "=", self.id)])
+        if previous_moves:
+            previous_moves.write({'account_move_export_id': False})
         domain = self._prepare_custom_filter_domain()
         moves = self.env["account.move"].search(domain)
         if not moves: