diff --git a/sys/dev/pci/pci.c b/sys/dev/pci/pci.c
index f4b7afec6911..04e8c5fdcf18 100644
--- a/sys/dev/pci/pci.c
+++ b/sys/dev/pci/pci.c
@@ -2988,6 +2988,8 @@ pci_resume(device_t dev)
 
 		/* Now the device is powered up, restore its config space. */
 		pci_cfg_restore(child, dinfo);
+		if (!device_is_attached(child))
+			pci_cfg_save(child, dinfo, 1);
 	}
 	free(devlist, M_TEMP);
 	return (bus_generic_resume(dev));