1 files changed, 2 insertions, 0 deletions
diff --git a/src/test/compile-fail/union/union-const-eval.rs b/src/test/compile-fail/union/union-const-eval.rs
index ee4d9fe99ee..73b7743fc45 100644
--- a/src/test/compile-fail/union/union-const-eval.rs
+++ b/src/test/compile-fail/union/union-const-eval.rs
@@ -20,5 +20,7 @@ fn main() {
         let a: [u8; C.a]; // OK
         let b: [u8; C.b]; //~ ERROR constant evaluation error
                           //~^ NOTE nonexistent struct field
+                          //~| WARNING constant evaluation error
+                          //~| NOTE on by default
     }
 }