Index: /trunk/src/VBox/Devices/Bus/DevPciMerge1.cpp.h
===================================================================
--- /trunk/src/VBox/Devices/Bus/DevPciMerge1.cpp.h	(revision 64732)
+++ /trunk/src/VBox/Devices/Bus/DevPciMerge1.cpp.h	(revision 64733)
@@ -157,5 +157,5 @@
             {
                 PPDMPCIDEV pMovePciDev = pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uMoveFun)];
-                AssertLogRelMsgReturn(!pMovePciDev && pMovePciDev->Int.s.fReassignableDevNo,
+                AssertLogRelMsgReturn(!pMovePciDev || pMovePciDev->Int.s.fReassignableDevNo,
                                       ("PCI Configuration conflict at %u.%u: %s vs %s\n",
                                        uPciDevNo, uMoveFun, pMovePciDev->pszNameR3, pszName),