diff --git a/usr.sbin/bhyve/pci_emul.c b/usr.sbin/bhyve/pci_emul.c
--- a/usr.sbin/bhyve/pci_emul.c
+++ b/usr.sbin/bhyve/pci_emul.c
@@ -825,6 +825,8 @@
 		error = pci_emul_alloc_resource(baseptr, limit, size, &addr);
 		if (error != 0)
 			return (error);
+	} else {
+		addr = 0;
 	}
 
 	pdi->pi_bar[idx].type = type;