diff --git a/asset.py b/asset.py
index 2a601cba98..c0b1f16af1 100644
--- a/asset.py
+++ b/asset.py
@@ -49,7 +49,7 @@ class Asset(Workflow, ModelSQL, ModelView):
                 ('product', '=', -1),
                 ('product', '=', Eval('product', -1)),
                 ),
-            ('invoice.type', '=', 'in_invoice'),
+            ('invoice.type', '=', 'in'),
             ['OR',
                 ('company', '=', Eval('company', -1)),
                 ('invoice.company', '=', Eval('company', -1)),
diff --git a/invoice.py b/invoice.py
index 0971284fb5..4cf362d50f 100644
--- a/invoice.py
+++ b/invoice.py
@@ -17,7 +17,7 @@ class InvoiceLine:
         states={
             'invisible': (~Eval('is_assets_depreciable', False)
                 | (Eval('_parent_invoice', {}).get('type',
-                        Eval('invoice_type')) != 'out_invoice')),
+                        Eval('invoice_type')) != 'out')),
             },
         depends=['product', 'is_assets_depreciable'])
     is_assets_depreciable = fields.Function(fields.Boolean(
@@ -41,7 +41,7 @@ class InvoiceLine:
         else:
             type_ = self.invoice_type
 
-        if (self.product and type_ in ('in_invoice', 'in_credit_note')
+        if (self.product and type_ == 'in'
                 and self.product.type == 'assets'
                 and self.product.depreciable):
             self.account = self.product.account_asset_used
diff --git a/purchase.py b/purchase.py
index 2eab9b3c6f..f65aa96525 100644
--- a/purchase.py
+++ b/purchase.py
@@ -17,9 +17,8 @@ class PurchaseLine:
                     'an "Account Asset" on product "%s".'),
                 })
 
-    def get_invoice_line(self, invoice_type):
-        invoice_lines = super(PurchaseLine, self).get_invoice_line(
-            invoice_type)
+    def get_invoice_line(self):
+        invoice_lines = super(PurchaseLine, self).get_invoice_line()
         if (self.product
                 and self.product.type == 'assets'
                 and self.product.depreciable):
diff --git a/tests/scenario_account_asset.rst b/tests/scenario_account_asset.rst
index 8b53352ddb..2166c151a9 100644
--- a/tests/scenario_account_asset.rst
+++ b/tests/scenario_account_asset.rst
@@ -97,7 +97,7 @@ Buy an asset::
 
     >>> Invoice = Model.get('account.invoice')
     >>> InvoiceLine = Model.get('account.invoice.line')
-    >>> supplier_invoice = Invoice(type='in_invoice')
+    >>> supplier_invoice = Invoice(type='in')
     >>> supplier_invoice.party = supplier
     >>> invoice_line = InvoiceLine()
     >>> supplier_invoice.lines.append(invoice_line)
@@ -229,7 +229,7 @@ Create Moves for 3 other months::
 
 Sale the asset::
 
-    >>> customer_invoice = Invoice(type='out_invoice')
+    >>> customer_invoice = Invoice(type='out')
     >>> customer_invoice.party = customer
     >>> invoice_line = InvoiceLine()
     >>> customer_invoice.lines.append(invoice_line)