diff --git a/src/test/run-pass/const-extern-function.rs b/src/test/run-pass/const-extern-function.rs
index b0186b4b4824..e8fd09137a59 100644
--- a/src/test/run-pass/const-extern-function.rs
+++ b/src/test/run-pass/const-extern-function.rs
@@ -18,4 +18,6 @@ struct S {
 }
 
 fn main() {
+    assert foopy == f;
+    assert f == s.f;
 }
\ No newline at end of file