diff --git a/ts-rs/tests/integration/optional_field.rs b/ts-rs/tests/integration/optional_field.rs
index 63fc6eae..fd57e17e 100644
--- a/ts-rs/tests/integration/optional_field.rs
+++ b/ts-rs/tests/integration/optional_field.rs
@@ -100,8 +100,6 @@ struct OptionalStruct {
     #[ts(optional = nullable)]
     c: Option<i32>,
 
-    // `#[ts(optional)]` on a type that isn't `Option<T>` does nothing
-    #[ts(optional = nullable)]
     d: i32,
 
     e: Foo,