diff --git a/demos/chartviewer/window.cpp b/demos/chartviewer/window.cpp
index 35b6824..09666ea 100644
--- a/demos/chartviewer/window.cpp
+++ b/demos/chartviewer/window.cpp
@@ -334,6 +334,7 @@ void Window::checkTemplate()
         m_baseLayout->addItem(qchart, j / 3, j % 3);
         m_chartHash[qchart] = j;
     }
+    m_baseLayout->activate();
 }
 
 void Window::checkTheme()