diff --git a/tests/compile-fail/derive.rs b/tests/compile-fail/derive.rs
index 06f1388dc05..775669dcbd5 100755
--- a/tests/compile-fail/derive.rs
+++ b/tests/compile-fail/derive.rs
@@ -3,6 +3,7 @@
 
 #![deny(warnings)]
 #![allow(dead_code)]
+#![allow(unused_variables)] // Temporary fix for rustc false positive. To be removed.
 
 use std::hash::{Hash, Hasher};