diff --git a/sys/dev/pci/pci_host_generic_acpi.c b/sys/dev/pci/pci_host_generic_acpi.c
--- a/sys/dev/pci/pci_host_generic_acpi.c
+++ b/sys/dev/pci/pci_host_generic_acpi.c
@@ -235,8 +235,8 @@
 				sc->base.bus_end = mcfg_entry->EndBusNumber;
 			base = mcfg_entry->Address;
 		} else {
-			device_printf(dev, "MCFG exists, but does not have bus %d-%d\n",
-			    sc->base.bus_start, sc->base.bus_end);
+			device_printf(dev, "MCFG exists, but does not have seg %d, bus %d-%d\n",
+			    sc->base.bus_start, sc->base.bus_start, sc->base.bus_end);
 			return (ENXIO);
 		}
 		pci_host_acpi_get_oem_quirks(sc, hdr);