diff --git a/usr.sbin/bhyve/pci_passthru.c b/usr.sbin/bhyve/pci_passthru.c
--- a/usr.sbin/bhyve/pci_passthru.c
+++ b/usr.sbin/bhyve/pci_passthru.c
@@ -733,7 +733,7 @@
 	/*
 	 * PCI BARs and MSI capability is emulated.
 	 */
-	if (bar_access(coff) || msicap_access(sc, coff))
+	if (bar_access(coff) || msicap_access(sc, coff) || msixcap_access(sc, coff))
 		return (-1);
 
 #ifdef LEGACY_SUPPORT