diff --git a/controllers/StatisticsController.php b/controllers/StatisticsController.php
index 5ea8159..760e9c4 100755
--- a/controllers/StatisticsController.php
+++ b/controllers/StatisticsController.php
@@ -236,7 +236,7 @@
                 /**
                  * @var Order $order
                  */
-                $line[] = $formatter->asDecimal($order->id);
+                $line[] = (string) $order->id;
                 $line[] = $formatter->asDatetime($order->created_at);
                 $line[] = (string) $order->name;
                 if (empty($order->products)) {
--
libgit2 0.21.4