diff --git a/tests/ui/unit_arg.fixed b/tests/ui/unit_arg.fixed
index cf146c91f6d0..a739cf7ad814 100644
--- a/tests/ui/unit_arg.fixed
+++ b/tests/ui/unit_arg.fixed
@@ -1,6 +1,6 @@
 // run-rustfix
 #![warn(clippy::unit_arg)]
-#![allow(clippy::no_effect, unused_must_use)]
+#![allow(unused_braces, clippy::no_effect, unused_must_use)]
 
 use std::fmt::Debug;
 
diff --git a/tests/ui/unit_arg.rs b/tests/ui/unit_arg.rs
index c15b0a500455..d90c49f79de6 100644
--- a/tests/ui/unit_arg.rs
+++ b/tests/ui/unit_arg.rs
@@ -1,6 +1,6 @@
 // run-rustfix
 #![warn(clippy::unit_arg)]
-#![allow(clippy::no_effect, unused_must_use)]
+#![allow(unused_braces, clippy::no_effect, unused_must_use)]
 
 use std::fmt::Debug;