diff --git a/src/test/bench/shootout-k-nucleotide.rs b/src/test/bench/shootout-k-nucleotide.rs
index 1330e8c892f3..224885a3f79b 100644
--- a/src/test/bench/shootout-k-nucleotide.rs
+++ b/src/test/bench/shootout-k-nucleotide.rs
@@ -1,3 +1,5 @@
+// xfail-test
+
 extern mod std;
 
 use core::cast::transmute;
diff --git a/src/test/bench/shootout-pidigits.rs b/src/test/bench/shootout-pidigits.rs
index 722d72ece816..38e87358ee21 100644
--- a/src/test/bench/shootout-pidigits.rs
+++ b/src/test/bench/shootout-pidigits.rs
@@ -1,3 +1,5 @@
+// xfail-test
+
 use core::cast::transmute;
 use core::from_str::FromStr;
 use core::libc::{STDOUT_FILENO, c_char, c_int, c_uint, c_void, fdopen, fputc};
diff --git a/src/test/bench/shootout-reverse-complement.rs b/src/test/bench/shootout-reverse-complement.rs
index e3774be053cd..72c01c8d55cf 100644
--- a/src/test/bench/shootout-reverse-complement.rs
+++ b/src/test/bench/shootout-reverse-complement.rs
@@ -1,4 +1,5 @@
 // xfail-pretty
+// xfail-test
 
 use core::cast::transmute;
 use core::libc::{STDOUT_FILENO, c_int, fdopen, fgets, fopen, fputc, fwrite};