diff --git a/roles/config-virt/defaults/main.yml b/roles/config-virt/defaults/main.yml
new file mode 100644
index 0000000..8a1faf1
--- /dev/null
+++ b/roles/config-virt/defaults/main.yml
@@ -0,0 +1,4 @@
+---
+# roles/config-virt/defaults/main.yml
+
+mgmtbr_name: virbr0
diff --git a/roles/config-virt/tasks/main.yml b/roles/config-virt/tasks/main.yml
index 76f14ae..d74d4f3 100644
--- a/roles/config-virt/tasks/main.yml
+++ b/roles/config-virt/tasks/main.yml
@@ -1,5 +1,5 @@
 ---
-# roles/config-virt/main/tasks.yml
+# roles/config-virt/tasks/main.yml
 
 - name: Get ubuntu image for uvtool
   command: uvt-simplestreams-libvirt sync --source http://cloud-images.ubuntu.com/daily \
diff --git a/roles/config-virt/templates/default.xml.j2 b/roles/config-virt/templates/default.xml.j2
index 5183aca..7914a2e 100644
--- a/roles/config-virt/templates/default.xml.j2
+++ b/roles/config-virt/templates/default.xml.j2
@@ -1,6 +1,6 @@
 <network>
   <name>default</name>
-  <bridge name="virbr0"/>
+  <bridge name="{{ mgmtbr_name }}"/>
   <forward/>
   <domain name="{{ site_suffix }}" localonly="no"/>
   <dns>