diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index 3c2b518..0c4b1c9 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -1301,8 +1301,8 @@
     };
     uint64_t guest_start;
     uint64_t guest_end;
-    int pci_region;
-    pcibus_t pci_start;
+    int pci_region = -1;
+    pcibus_t pci_start = PCI_BAR_UNMAPPED;
     pcibus_t pci_end;
     MemoryRegion *mr;
     intptr_t virt_start;