diff --git a/commission_simple/models/__init__.py b/commission_simple/models/__init__.py
index 3e8df3c..ff9910a 100644
--- a/commission_simple/models/__init__.py
+++ b/commission_simple/models/__init__.py
@@ -2,3 +2,4 @@ from . import commission_profile
 from . import commission_rule
 from . import commission_result
 from . import account_move_line
+from . import account_invoice_report
diff --git a/commission_simple/models/account_invoice_report.py b/commission_simple/models/account_invoice_report.py
new file mode 100644
index 0000000..f703b11
--- /dev/null
+++ b/commission_simple/models/account_invoice_report.py
@@ -0,0 +1,17 @@
+# Copyright 2018-2019 Akretion France (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class AccountInvoiceReport(models.Model):
+    _inherit = 'account.invoice.report'
+
+    commission_amount = fields.Float(readonly=True)
+
+    @api.model
+    def _select(self):
+        select_str = super()._select()
+        select_str += ", line.commission_amount * currency_table.rate AS commission_amount"
+        return select_str