Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/scale/UIMachineWindowScale.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/scale/UIMachineWindowScale.cpp	(revision 50795)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/scale/UIMachineWindowScale.cpp	(revision 50796)
@@ -251,5 +251,6 @@
     if (machineView() && pMessage->message == WM_SIZING && !(QApplication::keyboardModifiers() & Qt::ShiftModifier))
     {
-        if (double dAspectRatio = machineView()->aspectRatio())
+        double dAspectRatio = machineView()->aspectRatio();
+        if (dAspectRatio)
         {
             RECT *pRect = reinterpret_cast<RECT*>(pMessage->lParam);