--- a/tests/test-evolve-stop-orphan.t	Sat Dec 01 16:08:42 2018 +0800
+++ b/tests/test-evolve-stop-orphan.t	Tue Dec 04 13:33:51 2018 +0100
@@ -181,6 +181,7 @@
   undo.branch
   undo.desc
   undo.dirstate
+  wcache
 
 Checking when multiple revs need to be evolved, some revs evolve without
 conflicts