diff --git a/libchart/classes/view/chart/PieChart.php b/libchart/classes/view/chart/PieChart.php
index f2e5119..0ee8144 100644
--- a/libchart/classes/view/chart/PieChart.php
+++ b/libchart/classes/view/chart/PieChart.php
@@ -64,9 +64,15 @@ protected function computeLayout() {
          * @return integer result of the comparison
          */
         protected function sortPie($v1, $v2) {
-            return $v1[0] == $v2[0] ? 0 :
-                $v1[0] > $v2[0] ? -1 :
-                1;
+            if ($v1[0] == $v2[0]) {
+                return 0;
+            }
+            
+            if ($v1[0] > $v2[0]) {
+                return -1;
+            }
+            
+            return 1;
         }
         
         /**
@@ -264,4 +270,4 @@ public function render($fileName = null) {
             $this->plot->render($fileName);
         }
     }
-?>
\ No newline at end of file
+?>