diff --git a/libchart/classes/model/ChartConfig.php b/libchart/classes/model/ChartConfig.php
index 445482d..78805fc 100644
--- a/libchart/classes/model/ChartConfig.php
+++ b/libchart/classes/model/ChartConfig.php
@@ -47,7 +47,7 @@ class ChartConfig {
         /**
          * Creates a new ChartConfig with default options.
          */
-        public function ChartConfig() {
+        public function __construct() {
             $this->useMultipleColor = false;
             $this->showPointCaption = true;
             $this->sortDataPoint = true;
@@ -109,4 +109,4 @@ public function getSortDataPoint() {
             return $this->sortDataPoint;
         }
     }
-?>
\ No newline at end of file
+?>