diff --git a/product_contract/models/sale_order_line.py b/product_contract/models/sale_order_line.py
index cd2ffa3fc4..78a0827b96 100644
--- a/product_contract/models/sale_order_line.py
+++ b/product_contract/models/sale_order_line.py
@@ -212,6 +212,9 @@ def _compute_name(self):
         res = super()._compute_name()
         for line in self:
             if line.is_contract:
+                lang = line.order_id._get_lang()
+                if lang != self.env.lang:
+                    line = line.with_context(lang=lang)
                 if line.contract_start_date_method == "manual":
                     date_text = f"{line.date_start}"
                     if line.date_end: