diff --git a/src/allmydata/frontends/magic_folder.py b/src/allmydata/frontends/magic_folder.py
index c06bb8d93..b8ed0ae3f 100644
--- a/src/allmydata/frontends/magic_folder.py
+++ b/src/allmydata/frontends/magic_folder.py
@@ -619,7 +619,7 @@ class Uploader(QueueMixin):
         fp = self._get_filepath(relpath_u)
         pathinfo = get_pathinfo(unicode_from_filepath(fp))
         progress = PercentProgress()
-        self._log("add pending size: {}: {}".format(relpath_u, pathinfo.size))
+        self._log(u"add pending size: {}: {}".format(relpath_u, pathinfo.size))
         item = UploadItem(relpath_u, progress, pathinfo.size)
         item.set_status('queued', self._clock.seconds())
         self._deque.append(item)
@@ -655,7 +655,8 @@ class Uploader(QueueMixin):
         try:
             return self._real_notify(opaque, path, events_mask)
         except Exception as e:
-            self._log("error calling _real_notify: {}".format(e))
+            self._log(u"error calling _real_notify: {}".format(e))
+            return Failure()
 
     def _real_notify(self, opaque, path, events_mask):
         self._log("inotify event %r, %r, %r\n" % (opaque, path, ', '.join(self._inotify.humanReadableMask(events_mask))))
diff --git a/src/allmydata/test/web/test_web.py b/src/allmydata/test/web/test_web.py
index 8d809bbd2..34d0d78b1 100644
--- a/src/allmydata/test/web/test_web.py
+++ b/src/allmydata/test/web/test_web.py
@@ -127,6 +127,7 @@ class FakeStatusItem(object):
         import mock
         self.progress = mock.Mock()
         self.progress.progress = 100.0
+        self.size = 1234
 
     def status_history(self):
         return self.history
@@ -1017,7 +1018,14 @@ class Web(WebMixin, WebErrorMixin, testutil.StallMixin, testutil.ReallyEqualMixi
         self.assertEqual(
             data,
             [
-                {"status": "done", "path": "rel/path", "kind": "upload", "percent_done": 100.0, "done_at": 12345},
+                {
+                    "status": "done",
+                    "path": "rel/path",
+                    "kind": "upload",
+                    "percent_done": 100.0,
+                    "done_at": 12345,
+                    "size": 1234,
+                },
             ]
         )