diff --git a/rpython/rlib/rvmprof/test/test_traceback.py b/rpython/rlib/rvmprof/test/test_traceback.py
index ac06ebcec4f..68e266e37c1 100644
--- a/rpython/rlib/rvmprof/test/test_traceback.py
+++ b/rpython/rlib/rvmprof/test/test_traceback.py
@@ -111,7 +111,8 @@ def f(argv):
     got = r.findall(stdout)
     addr = got[0][0]
     assert got == [(addr, '1'), (addr, '1'), (addr, '0')]
-
+ 
+@pytest.mark.flaky
 def test_all():
     import os, sys, subprocess
     thisfile = os.path.abspath(__file__)