diff --git a/axum/src/routing/mod.rs b/axum/src/routing/mod.rs
index 9fb0a87e..05d9533a 100644
--- a/axum/src/routing/mod.rs
+++ b/axum/src/routing/mod.rs
@@ -670,7 +670,6 @@ impl<S> fmt::Debug for Endpoint<S> {
 }
 
 #[test]
-#[allow(warnings)]
 fn traits() {
     use crate::test_helpers::*;
     assert_send::<Router<()>>();