diff --git a/src/test/run-fail/small-negative-indexing.rs b/src/test/run-fail/small-negative-indexing.rs
index 89aa8c80dc2b..0d73cc3e6c55 100644
--- a/src/test/run-fail/small-negative-indexing.rs
+++ b/src/test/run-fail/small-negative-indexing.rs
@@ -1,4 +1,4 @@
-
+// error-pattern:bounds check
 fn main() {
     let v = vec::from_fn(1024u) {|n| n};
     // this should trip a bounds check