diff --git a/subiquity/server/controllers/filesystem.py b/subiquity/server/controllers/filesystem.py
index 5257728f..8a6fb810 100644
--- a/subiquity/server/controllers/filesystem.py
+++ b/subiquity/server/controllers/filesystem.py
@@ -846,7 +846,7 @@ class FilesystemController(SubiquityController, FilesystemManipulator):
     @with_context(name='probe_once', description='restricted={restricted}')
     async def _probe_once(self, *, context, restricted):
         if restricted:
-            probe_types = {'blockdev'}
+            probe_types = {'blockdev', 'filesystem'}
             fname = 'probe-data-restricted.json'
             key = "ProbeDataRestricted"
         else:
diff --git a/subiquity/server/controllers/tests/test_filesystem.py b/subiquity/server/controllers/tests/test_filesystem.py
index f9d151e5..aea44c72 100644
--- a/subiquity/server/controllers/tests/test_filesystem.py
+++ b/subiquity/server/controllers/tests/test_filesystem.py
@@ -72,7 +72,8 @@ class TestSubiquityControllerFilesystem(IsolatedAsyncioTestCase):
 
     async def test_probe_restricted(self):
         await self.fsc._probe_once(context=None, restricted=True)
-        self.app.prober.get_storage.assert_called_with({'blockdev'})
+        expected = {'blockdev', 'filesystem'}
+        self.app.prober.get_storage.assert_called_with(expected)
 
     async def test_probe_os_prober_false(self):
         self.app.opts.use_os_prober = False