diff --git a/pkg/invoices.go b/pkg/invoices.go
index 1680464..03e1f3a 100644
--- a/pkg/invoices.go
+++ b/pkg/invoices.go
@@ -59,7 +59,6 @@ func GetInvoiceForm(w http.ResponseWriter, r *http.Request, params httprouter.Pa
 	form := newInvoiceForm(r.Context(), conn, locale, company)
 	slug := params[0].Value
 	if slug == "new" {
-		form.Customer.EmptyLabel = gettext("Select a customer to bill.", locale)
 		form.Date.Val = time.Now().Format("2006-01-02")
 		w.WriteHeader(http.StatusOK)
 		mustRenderNewInvoiceForm(w, r, form)
@@ -68,6 +67,8 @@ func GetInvoiceForm(w http.ResponseWriter, r *http.Request, params httprouter.Pa
 }
 
 func mustRenderNewInvoiceForm(w http.ResponseWriter, r *http.Request, form *invoiceForm) {
+	locale := getLocale(r)
+	form.Customer.EmptyLabel = gettext("Select a customer to bill.", locale)
 	mustRenderAppTemplate(w, r, "invoices/new.gohtml", form)
 }
 
diff --git a/web/template/invoices/new.gohtml b/web/template/invoices/new.gohtml
index ec184ee..432de17 100644
--- a/web/template/invoices/new.gohtml
+++ b/web/template/invoices/new.gohtml
@@ -34,8 +34,10 @@
             {{- end }}
 
             <fieldset>
-                <button name="action" value="products" type="submit">{{( pgettext "Add products" "action" )}}</button>
-                <button name="action" value="update" type="submit">{{( pgettext "Update" "action" )}}</button>
+                <button formnovalidate name="action" value="products"
+                        type="submit">{{( pgettext "Add products" "action" )}}</button>
+                <button formnovalidate name="action" value="update"
+                        type="submit">{{( pgettext "Update" "action" )}}</button>
                 <button class="primary" name="action" value="add"
                         type="submit">{{( pgettext "New invoice" "action" )}}</button>
             </fieldset>