diff --git a/tests/testdriver.xml b/tests/testdriver.xml
index f281fadfc..30b521059 100644
--- a/tests/testdriver.xml
+++ b/tests/testdriver.xml
@@ -157,6 +157,7 @@
     </disk>
 
     <controller type='scsi' index='9' model='virtio-scsi'/>
+    <controller type='usb'/>
 
     <interface type='network'>
       <source network='default'/>