diff --git a/ApplicationCode/Application/RiaGuiApplication.cpp b/ApplicationCode/Application/RiaGuiApplication.cpp
index 134272d772..31143abb9f 100644
--- a/ApplicationCode/Application/RiaGuiApplication.cpp
+++ b/ApplicationCode/Application/RiaGuiApplication.cpp
@@ -1114,7 +1114,8 @@ void RiaGuiApplication::deleteMainPlotWindow()
 {
     if ( m_mainPlotWindow )
     {
-        m_mainPlotWindow->deleteLater();
+        m_mainPlotWindow->setParent( nullptr );
+        delete m_mainPlotWindow;
         m_mainPlotWindow = nullptr;
     }
 }