diff --git a/locale/ca_ES.po b/locale/ca_ES.po
new file mode 100644
index 0000000000..5c356ee91c
--- /dev/null
+++ b/locale/ca_ES.po
@@ -0,0 +1,83 @@
+# 
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "error:project.work:"
+msgid "There is no list price on work \"%s\"."
+msgstr "No hi ha cap producte al treball \"%s\"."
+
+msgctxt "error:project.work:"
+msgid "There is no party on work \"%s\"."
+msgstr "No hi ha cap tercer al treball \"%s\"."
+
+msgctxt "error:project.work:"
+msgid "There is no product on work \"%s\"."
+msgstr "No hi ha cap producte al treball \"%s\"."
+
+msgctxt "error:timesheet.line:"
+msgid "You can not delete invoiced line."
+msgstr "No podeu eliminar una línia facturada."
+
+msgctxt "field:project.work,hours_to_invoice:"
+msgid "Hours to Invoice"
+msgstr "Hores a facturar"
+
+msgctxt "field:project.work,invoice_line:"
+msgid "Invoice Line"
+msgstr "Línia de factura"
+
+msgctxt "field:project.work,invoice_method:"
+msgid "Invoice Method"
+msgstr "Mètode de facturació"
+
+msgctxt "field:project.work,invoiced_amount:"
+msgid "Invoiced Amount"
+msgstr "Import facturat"
+
+msgctxt "field:project.work,invoiced_hours:"
+msgid "Invoiced Hours"
+msgstr "Hores facturades"
+
+msgctxt "field:project.work,project_invoice_method:"
+msgid "Invoice Method"
+msgstr "Mètode de facturació"
+
+msgctxt "field:timesheet.line,invoice_line:"
+msgid "Invoice Line"
+msgstr "Línia de factura"
+
+msgctxt "model:ir.action,name:open_invoice"
+msgid "Invoices"
+msgstr "Factures"
+
+msgctxt "model:res.group,name:group_project_invoice"
+msgid "Project Invoice"
+msgstr "Facturació de projectes"
+
+msgctxt "selection:project.work,invoice_method:"
+msgid "Manual"
+msgstr "Manual"
+
+msgctxt "selection:project.work,invoice_method:"
+msgid "On Effort"
+msgstr "Per l'esforç estimat"
+
+msgctxt "selection:project.work,invoice_method:"
+msgid "On Timesheet"
+msgstr "Per les hores realitzades"
+
+msgctxt "selection:project.work,project_invoice_method:"
+msgid "Manual"
+msgstr "Manual"
+
+msgctxt "selection:project.work,project_invoice_method:"
+msgid "On Effort"
+msgstr "Per l'esforç estimat"
+
+msgctxt "selection:project.work,project_invoice_method:"
+msgid "On Timesheet"
+msgstr "Per les hores realitzades"
+
+msgctxt "view:project.work:"
+msgid "Invoice"
+msgstr "Factura"
diff --git a/setup.py b/setup.py
index 5bc03a9ddb..fcb849bc4a 100644
--- a/setup.py
+++ b/setup.py
@@ -57,6 +57,7 @@ setup(name='trytond_project_invoice',
         'Intended Audience :: Manufacturing',
         'License :: OSI Approved :: GNU General Public License (GPL)',
         'Natural Language :: Bulgarian',
+        'Natural Language :: Catalan',
         'Natural Language :: Czech',
         'Natural Language :: Dutch',
         'Natural Language :: English',