diff --git a/src/test/run-pass/issue-506.rs b/src/test/run-pass/issue-506.rs
index 72aff29f9ffe..5d0ceefeb3cf 100644
--- a/src/test/run-pass/issue-506.rs
+++ b/src/test/run-pass/issue-506.rs
@@ -1,3 +1,4 @@
+// xfail-test
 /*
   A reduced test case for Issue #506, provided by Rob Arnold.