diff --git a/subiquity/models/filesystem.py b/subiquity/models/filesystem.py
index 74a434f4..ebb7df0b 100644
--- a/subiquity/models/filesystem.py
+++ b/subiquity/models/filesystem.py
@@ -820,16 +820,22 @@ class Raid(_Device):
     wipe = attr.ib(default=None)
     ptable = attributes.ptable()
     metadata = attr.ib(default=None)
-    path = attr.ib(default=None)
+    _path = attr.ib(default=None)
     container = attributes.ref(backlink="_subvolumes", default=None)  # Raid
     _subvolumes = attributes.backlink(default=attr.Factory(list))
 
     @property
     def path(self):
+        if self._path is not None:
+            return self._path
         # This is just here to make for_client(raid-with-partitions) work. It
         # might not be very accurate.
         return '/dev/md/' + self.name
 
+    @path.setter
+    def path(self, value):
+        self._path = value
+
     @property
     def size(self):
         if self.preserve and self._m._probe_data: