diff --git a/account_invoice_tax_required/i18n/account_invoice_tax_require.pot b/account_invoice_tax_required/i18n/account_invoice_tax_require.pot
index 23c49ae89..8ec91e874 100644
--- a/account_invoice_tax_required/i18n/account_invoice_tax_require.pot
+++ b/account_invoice_tax_required/i18n/account_invoice_tax_require.pot
@@ -23,7 +23,7 @@ msgstr ""
 #. module: account_invoice_tax_required
 #: code:addons/account_invoice_tax_required/models/account_invoice.py:29
 #, python-format
-msgid "Invoice have a line with product %s with no taxes"
+msgid "Invoice has a line with product %s with no taxes"
 msgstr ""
 
 #. module: account_invoice_tax_required
diff --git a/account_invoice_tax_required/i18n/fr.po b/account_invoice_tax_required/i18n/fr.po
index dc9935476..5ee1dd07f 100644
--- a/account_invoice_tax_required/i18n/fr.po
+++ b/account_invoice_tax_required/i18n/fr.po
@@ -23,7 +23,7 @@ msgstr "Facture"
 #. module: account_invoice_tax_required
 #: code:addons/account_invoice_tax_required/models/account_invoice.py:29
 #, python-format
-msgid "Invoice have a line with product %s with no taxes"
+msgid "Invoice has a line with product %s with no taxes"
 msgstr "La facture a un produit %s sans taxe"
 
 #. module: account_invoice_tax_required
diff --git a/account_invoice_tax_required/models/account_invoice.py b/account_invoice_tax_required/models/account_invoice.py
index 44b0f06ba..836ef236c 100644
--- a/account_invoice_tax_required/models/account_invoice.py
+++ b/account_invoice_tax_required/models/account_invoice.py
@@ -26,7 +26,7 @@ class AccountInvoice(models.Model):
     @api.multi
     def test_invoice_line_tax(self):
         errors = []
-        error_template = _("Invoice have a line with product %s with no taxes")
+        error_template = _("Invoice has a line with product %s with no taxes")
         for invoice in self:
             for invoice_line in invoice.invoice_line:
                 if not invoice_line.invoice_line_tax_id: