diff --git a/stock_product_brand_info/models/stock_move_line.py b/stock_product_brand_info/models/stock_move_line.py
index a761359259..32297fca38 100644
--- a/stock_product_brand_info/models/stock_move_line.py
+++ b/stock_product_brand_info/models/stock_move_line.py
@@ -57,7 +57,7 @@ def _get_aggregated_product_quantities(self, **kwargs):
             return result
         for clave in result.keys():
             for move_line in self:
-                line_key = self._generate_keys_to_found()
+                line_key = move_line._generate_keys_to_found()
                 if line_key in clave:
                     result[clave]["fabricator"] = (
                         ""