diff --git a/src/test/run-pass/issue-7331.rs b/src/test/run-pass/issue-7331.rs
new file mode 100644
index 0000000000000..0f0103eeb6428
--- /dev/null
+++ b/src/test/run-pass/issue-7331.rs
@@ -0,0 +1,20 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub trait Interner<'self, T> {
+    fn new() -> Self;
+    fn get(&'self self, tag: uint) -> Option<&'self T>;
+}
+
+pub trait FromVec<'self> {
+    fn fromVec(&'self [u8]) -> Self;
+}
+
+fn main() {}