diff --git a/tests/cli-test-xml/compare/virt-install-many-devices.xml b/tests/cli-test-xml/compare/virt-install-many-devices.xml
index 121fc86e5..cfedeef26 100644
--- a/tests/cli-test-xml/compare/virt-install-many-devices.xml
+++ b/tests/cli-test-xml/compare/virt-install-many-devices.xml
@@ -233,7 +233,7 @@
       <address type="pci" domain="0" bus="0" slot="4" function="2"/>
     </controller>
     <controller type="scsi" index="0" model="virtio-scsi">
-      <driver queues="4"/>
+      <driver queues="4" iothread="2"/>
     </controller>
     <controller type="xenbus" index="0" maxGrantFrames="64"/>
     <filesystem type="mount" accessmode="mapped">
diff --git a/tests/clitest.py b/tests/clitest.py
index 4c67c1907..7af7b9473 100644
--- a/tests/clitest.py
+++ b/tests/clitest.py
@@ -622,7 +622,7 @@ source.reservations.managed=no,source.reservations.source.type=unix,source.reser
 --controller usb,model=ich9-uhci1,address=0:0:4.0,index=0,master=0,address.multifunction=on
 --controller usb,model=ich9-uhci2,address=0:0:4.1,index=0,master.startport=2
 --controller usb,model=ich9-uhci3,address=0:0:4.2,index=0,master=4
---controller scsi,,model=virtio-scsi,driver_queues=4,driver.queues=4
+--controller scsi,,model=virtio-scsi,driver_queues=4,driver.queues=4,driver.iothread=2
 --controller xenbus,maxGrantFrames=64
 
 --input type=keyboard,bus=usb
diff --git a/virtinst/cli.py b/virtinst/cli.py
index f9660f89a..c89440eae 100644
--- a/virtinst/cli.py
+++ b/virtinst/cli.py
@@ -3429,6 +3429,7 @@ class ParserController(VirtCLIParser):
         cls.add_arg("index", "index")
         cls.add_arg("maxGrantFrames", "maxGrantFrames")
         cls.add_arg("master.startport", "master_startport")
+        cls.add_arg("driver.iothread", "driver_iothread")
         cls.add_arg("driver.queues", "driver_queues")
 
         cls.add_arg("address", None, lookup_cb=None, cb=cls.set_address_cb)
diff --git a/virtinst/devices/controller.py b/virtinst/devices/controller.py
index 5f4949cec..114d8b395 100644
--- a/virtinst/devices/controller.py
+++ b/virtinst/devices/controller.py
@@ -70,12 +70,14 @@ class DeviceController(Device):
     model = XMLProperty("./@model")
     vectors = XMLProperty("./@vectors", is_int=True)
     ports = XMLProperty("./@ports", is_int=True)
-    master_startport = XMLProperty("./master/@startport", is_int=True)
-    driver_queues = XMLProperty("./driver/@queues", is_int=True)
     maxGrantFrames = XMLProperty("./@maxGrantFrames", is_int=True)
-
     index = XMLProperty("./@index", is_int=True)
 
+    driver_iothread = XMLProperty("./driver/@iothread", is_int=True)
+    driver_queues = XMLProperty("./driver/@queues", is_int=True)
+
+    master_startport = XMLProperty("./master/@startport", is_int=True)
+
 
     ##################
     # Default config #