diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
index 888c416c85087689a1ccc0fd44f02eb8ab1dc00c..86fd5c4be0490cb89946517cddd767fdf5ab61f4 100644
--- a/src/security/virt-aa-helper.c
+++ b/src/security/virt-aa-helper.c
@@ -1022,7 +1022,8 @@ get_files(vahControl * ctl)
             switch (dev->source.subsys.type) {
             case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB: {
                 usbDevice *usb = usbGetDevice(dev->source.subsys.u.usb.bus,
-                                              dev->source.subsys.u.usb.device);
+                                              dev->source.subsys.u.usb.device,
+                                              NULL);
 
                 if (usb == NULL)
                     continue;