diff --git a/issue9146.diff b/issue9146.diff
new file mode 100644
index 0000000..43dfaf1
--- /dev/null
+++ b/issue9146.diff
@@ -0,0 +1,45 @@
+diff --git a/trytond/trytond/modules/account_stock_landed_cost/account.py b/trytond/trytond/modules/account_stock_landed_cost/account.py
+index 3815326..93478b1 100644
+--- a/trytond/trytond/modules/account_stock_landed_cost/account.py
++++ b/trytond/trytond/modules/account_stock_landed_cost/account.py
+@@ -10,11 +10,18 @@ from trytond.transaction import Transaction
+ from trytond import backend
+ from trytond.tools.multivalue import migrate_property
+ from trytond.modules.company.model import CompanyValueMixin
++from trytond.modules.product import price_digits
+ 
+ __all__ = ['Configuration', 'ConfigurationLandedCostSequence',
+     'LandedCost', 'LandedCost_Shipment', 'InvoiceLine']
+
+
++def round_price(value, rounding=None):
++    "Round price using the price digits"
++    return value.quantize(
++        Decimal(1) / 10 ** price_digits[1], rounding=rounding)
++
++
+ class Configuration(metaclass=PoolMeta):
+     __name__ = 'account.configuration'
+     landed_cost_sequence = fields.MultiValue(fields.Many2One(
+@@ -244,8 +251,8 @@ class LandedCost(Workflow, ModelSQL, ModelView):
+         for move in moves:
+             quantity = Decimal(str(move.quantity))
+             move_cost = cost * factors[move.id]
+-            unit_landed_cost = (move_cost / quantity).quantize(exp,
+-                rounding=ROUND_DOWN)
++            unit_landed_cost = round_price(
++                move_cost / quantity, rounding=ROUND_DOWN)
+             costs.append({
+                     'unit_landed_cost': unit_landed_cost,
+                     'difference': move_cost - (unit_landed_cost * quantity),
+@@ -267,8 +274,8 @@ class LandedCost(Workflow, ModelSQL, ModelView):
+             unit_landed_cost = Currency.compute(
+                 currency, cost['unit_landed_cost'],
+                 move.currency, round=False)
+-            unit_landed_cost = unit_landed_cost.quantize(
+-                exp, rounding=ROUND_HALF_EVEN)
++            unit_landed_cost = round_price(
++                unit_landed_cost, rounding=ROUND_HALF_EVEN)
+             if move.unit_landed_cost is None:
+                 move.unit_landed_cost = 0
+             move.unit_price += unit_landed_cost
diff --git a/series b/series
index bc8ea64..669abbc 100644
--- a/series
+++ b/series
@@ -95,3 +95,4 @@ account_asset_update_asset.diff # [account_asset] convert float to decimal [#044
 issue10382.diff # [stock_split] Decimals of quantity move exceed the total digits when split move
 
 issue10338.diff # [bank] Search on rec_name of other model in search_rec_name
+issue9146.diff # [account_stock_landed_cost] Use field digits on secondary unit