diff --git a/src/test/run-pass/issue-3521.rs b/src/test/compile-fail/issue-3521.rs
similarity index 50%
rename from src/test/run-pass/issue-3521.rs
rename to src/test/compile-fail/issue-3521.rs
index d8693fe18d35..9ad483367fe9 100644
--- a/src/test/run-pass/issue-3521.rs
+++ b/src/test/compile-fail/issue-3521.rs
@@ -1,9 +1,8 @@
-// xfail-test
 fn main() {
     let foo = 100;
 
     enum Stuff {
-        Bar = foo
+        Bar = foo //~ ERROR attempt to use a non-constant value in a constant
     }
 
     log(error, Bar);