diff --git a/plugins/doc_fragments/virt.py b/plugins/doc_fragments/virt.py
index eb8437e..1809970 100644
--- a/plugins/doc_fragments/virt.py
+++ b/plugins/doc_fragments/virt.py
@@ -70,9 +70,11 @@ class ModuleDocFragment(object):
 options:
   mutate_flags:
     description:
-      - For each mutate_flag, we will modify the given XML in some way:
+      - For each mutate_flag, we will modify the given XML in some way
       - ADD_UUID will add an existing domain's UUID to the xml if it's missing
       - ADD_MAC_ADDRESSES will try to copy MAC addresses from the existing domain's network interfaces
     choices: [ ADD_UUID, ADD_MAC_ADDRESSES ]
     type: list
+    element: str
+    default: ['ADD_UUID']
     """