From 71192f2d6cbd31112546a48ebacfd38625519e58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean=20Traull=C3=A9?=
 <613615+jtraulle@users.noreply.github.com>
Date: Mon, 23 Oct 2017 19:45:58 +0200
Subject: [PATCH] Fix #3

---
 src/View/Helper/DrawChartHelper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/View/Helper/DrawChartHelper.php b/src/View/Helper/DrawChartHelper.php
index 05e9987..f43e4b4 100644
--- a/src/View/Helper/DrawChartHelper.php
+++ b/src/View/Helper/DrawChartHelper.php
@@ -108,7 +108,7 @@ public function makeMultiTraceChart(
                     $type,
                     isset($serie[2]) ? $serie[2] : null,
                     isset($serie[3]) ? $serie[3] : null,
-                    isset($serie[4]) ? $serie[4] : null
+                    isset($serie[4]) ? $serie[4] : []
                 )
             );
         }