diff --git a/tests/eq_size.rs b/tests/eq_size.rs
index ed8c86f..f36094f 100644
--- a/tests/eq_size.rs
+++ b/tests/eq_size.rs
@@ -6,7 +6,7 @@ extern crate static_assertions;
 assert_eq_size!(byte; u8, u8, (u8,), [u8; 1]);
 
 #[cfg(feature = "failure")]
-const_assert!(byte; u8, u8);
+assert_eq_size!(byte; u8, u8);
 
 // Placed in separate module so that DropCounter's fields are private
 mod dc {