diff --git a/app/Http/Controllers/InvoiceController.php b/app/Http/Controllers/InvoiceController.php
index 814ff3140bd7..01594fa5a89b 100644
--- a/app/Http/Controllers/InvoiceController.php
+++ b/app/Http/Controllers/InvoiceController.php
@@ -372,14 +372,10 @@ class InvoiceController extends BaseController
         $action = Input::get('action');
         $entityType = Input::get('entityType');
 
-        if (config('ninja.lock_sent_invoices')) {
-            $invoice = $request->entity();
-        } else {
-            $invoice = $this->invoiceService->save($data, $request->entity());
-            $entityType = $invoice->getEntityType();
-            $message = trans("texts.updated_{$entityType}");
-            Session::flash('message', $message);
-        }
+        $invoice = $this->invoiceService->save($data, $request->entity());
+        $entityType = $invoice->getEntityType();
+        $message = trans("texts.updated_{$entityType}");
+        Session::flash('message', $message);
 
         if ($action == 'clone_invoice') {
             return url(sprintf('invoices/%s/clone', $invoice->public_id));
diff --git a/app/Ninja/Repositories/InvoiceRepository.php b/app/Ninja/Repositories/InvoiceRepository.php
index 8f0fd67a41ca..32a3909f25f4 100644
--- a/app/Ninja/Repositories/InvoiceRepository.php
+++ b/app/Ninja/Repositories/InvoiceRepository.php
@@ -742,7 +742,7 @@ class InvoiceRepository extends BaseRepository
                         if ($product && (Auth::user()->can('edit', $product))) {
                             $product->notes = ($task || $expense) ? '' : $item['notes'];
                             if (! $account->convert_products) {
-                                $product->cost = $expense ? 0 : $item['cost'];
+                                $product->cost = $expense ? 0 : Utils::parseFloat($item['cost']);
                             }
                             $product->tax_name1 = isset($item['tax_name1']) ? $item['tax_name1'] : null;
                             $product->tax_rate1 = isset($item['tax_rate1']) ? $item['tax_rate1'] : 0;