diff --git a/src/test/bench/graph500-bfs.rs b/src/test/bench/graph500-bfs.rs
index f1d5749e8402..52d08c548d72 100644
--- a/src/test/bench/graph500-bfs.rs
+++ b/src/test/bench/graph500-bfs.rs
@@ -1,3 +1,5 @@
+// xfail-pretty
+
 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
diff --git a/src/test/bench/sudoku.rs b/src/test/bench/sudoku.rs
index a3a3ef85f45a..05dac339177b 100644
--- a/src/test/bench/sudoku.rs
+++ b/src/test/bench/sudoku.rs
@@ -1,3 +1,5 @@
+// xfail-pretty
+
 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
diff --git a/src/test/bench/task-perf-jargon-metal-smoke.rs b/src/test/bench/task-perf-jargon-metal-smoke.rs
index 528dfd3ec734..49a06fd491cd 100644
--- a/src/test/bench/task-perf-jargon-metal-smoke.rs
+++ b/src/test/bench/task-perf-jargon-metal-smoke.rs
@@ -1,3 +1,5 @@
+// xfail-pretty
+
 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
diff --git a/src/test/bench/task-perf-linked-failure.rs b/src/test/bench/task-perf-linked-failure.rs
index 8bb4c9bc5923..c6074cc522e6 100644
--- a/src/test/bench/task-perf-linked-failure.rs
+++ b/src/test/bench/task-perf-linked-failure.rs
@@ -1,3 +1,5 @@
+// xfail-pretty
+
 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.