diff --git a/tests/ui/consts/issue-17718.rs b/tests/ui/consts/issue-17718.rs
index b6c676886c10..33e2d791840e 100644
--- a/tests/ui/consts/issue-17718.rs
+++ b/tests/ui/consts/issue-17718.rs
@@ -1,7 +1,9 @@
 //@ run-pass
-#![allow(dead_code)]
 //@ aux-build:issue-17718-aux.rs
 
+#![allow(dead_code)]
+#![allow(const_item_interior_mutations)]
+
 extern crate issue_17718_aux as other;
 
 use std::sync::atomic::{AtomicUsize, Ordering};