diff --git a/src/allmydata/test/test_magic_folder.py b/src/allmydata/test/test_magic_folder.py
index 3b41f6d7d..3d1015543 100644
--- a/src/allmydata/test/test_magic_folder.py
+++ b/src/allmydata/test/test_magic_folder.py
@@ -1477,6 +1477,13 @@ class SingleMagicFolderTestMixin(MagicFolderCLITestMixin, ShouldFailMixin, Reall
         from foolscap.eventual import flushEventualQueue
         self.addCleanup(flushEventualQueue)
 
+        # Sometimes a collective scan fails with UnrecoverableFileError.  It's
+        # not clear to me why. :/ This fixes the issue, though, and all other
+        # asserted-about behavior is provided whether this case is hit or not.
+        self.addCleanup(
+            lambda: self.eliot_logger.flushTracebacks(UnrecoverableFileError)
+        )
+
         d = DeferredContext(self.create_invite_join_magic_folder(self.alice_nickname, self.local_dir))
         d.addCallback(self._restart_client)
         # note: _restart_client ultimately sets self.magicfolder to not-None