diff --git a/src/test/run-fail/linked-failure4.rs b/src/test/run-fail/linked-failure4.rs
index 6d4d387c53d8..3f3219956d53 100644
--- a/src/test/run-fail/linked-failure4.rs
+++ b/src/test/run-fail/linked-failure4.rs
@@ -1,5 +1,6 @@
 // -*- rust -*-
 // error-pattern:1 == 2
+// xfail-test Been deadlocking on mac
 use std;
 import std::task;
 import std::comm::chan;