diff --git a/hw/i386/kvm/pci-assign.c b/hw/i386/kvm/pci-assign.c
index e55421adcd..0572821f21 100644
--- a/hw/i386/kvm/pci-assign.c
+++ b/hw/i386/kvm/pci-assign.c
@@ -1664,6 +1664,7 @@ static void assigned_dev_register_msix_mmio(AssignedDevice *dev, Error **errp)
                            MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
     if (dev->msix_table == MAP_FAILED) {
         error_setg_errno(errp, errno, "failed to allocate msix_table");
+        dev->msix_table = NULL;
         return;
     }