diff --git a/examples/axischart/main.cpp b/examples/axischart/main.cpp
index 5576366..f053ec9 100644
--- a/examples/axischart/main.cpp
+++ b/examples/axischart/main.cpp
@@ -50,10 +50,10 @@ int main(int argc, char *argv[])
     axisX->setLabelsAngle(45);
     axisX->setGridPen(Qt::DashLine);
 
-    QChartAxisCategories& categoriesX = axisX->categories();
-    categoriesX.insert(0,"low");
-    categoriesX.insert(50,"medium");
-    categoriesX.insert(100,"High");
+    QChartAxisCategories *categoriesX = axisX->categories();
+    categoriesX->insert(0,"low");
+    categoriesX->insert(50,"medium");
+    categoriesX->insert(100,"High");
 
     axisX->setMin(-10);
     axisX->setMax(2200);
@@ -62,10 +62,10 @@ int main(int argc, char *argv[])
     axisY->setLabelsAngle(45);
     axisY->setShadesBrush(Qt::yellow);
 
-    QChartAxisCategories& categoriesY = axisY->categories();
-    categoriesY.insert(0,"low");
-    categoriesY.insert(50,"medium");
-    categoriesY.insert(100,"High");
+    QChartAxisCategories *categoriesY = axisY->categories();
+    categoriesY->insert(0,"low");
+    categoriesY->insert(50,"medium");
+    categoriesY->insert(100,"High");
 
     axisY->setMin(-10);
     axisY->setMax(200);