diff --git a/tests/async/tasync_traceback.nim b/tests/async/tasync_traceback.nim
index 8584cc9814..e4c8a67b34 100644
--- a/tests/async/tasync_traceback.nim
+++ b/tests/async/tasync_traceback.nim
@@ -1,6 +1,7 @@
 discard """
   exitcode: 0
   disabled: "windows"
+  output: "Matched"
 """
 import asyncdispatch