diff --git a/test_suite/tests/regression/issue2415.rs b/test_suite/tests/regression/issue2415.rs
index 31c52270..58a6b60b 100644
--- a/test_suite/tests/regression/issue2415.rs
+++ b/test_suite/tests/regression/issue2415.rs
@@ -2,4 +2,5 @@ use serde_derive::Serialize;
 
 #[derive(Serialize)]
 #[serde()]
+#[allow(dead_code)]
 pub struct S;
diff --git a/test_suite/tests/test_gen.rs b/test_suite/tests/test_gen.rs
index e7338e35..85f6a790 100644
--- a/test_suite/tests/test_gen.rs
+++ b/test_suite/tests/test_gen.rs
@@ -805,6 +805,8 @@ fn test_gen() {
         pub vec: Vec<Self>,
     }
 
+    assert_ser::<Struct>();
+
     #[derive(Deserialize)]
     #[serde(bound(deserialize = "[&'de str; N]: Copy"))]
     pub struct GenericUnitStruct<const N: usize>;