diff --git a/libchart/classes/view/chart/VerticalBarChart.php b/libchart/classes/view/chart/VerticalBarChart.php
index bd05c1b..5477b15 100644
--- a/libchart/classes/view/chart/VerticalBarChart.php
+++ b/libchart/classes/view/chart/VerticalBarChart.php
@@ -34,8 +34,8 @@ class VerticalBarChart extends BarChart {
          * @param integer width of the image
          * @param integer height of the image
          */
-        public function VerticalBarChart($width = 600, $height = 250) {
-            parent::BarChart($width, $height);
+        public function __construct($width = 600, $height = 250) {
+            parent::__construct($width, $height);
 
             $this->emptyToFullRatio = 1 / 5;
             $this->plot->setGraphPadding(new Padding(5, 30, 50, 50));
@@ -240,4 +240,4 @@ public function render($fileName = null) {
             $this->plot->render($fileName);
         }
     }
-?>
\ No newline at end of file
+?>