diff --git a/tests/source/structs.rs b/tests/source/structs.rs
index 6dfb565e80b..0f0e7ecf4fa 100644
--- a/tests/source/structs.rs
+++ b/tests/source/structs.rs
@@ -269,3 +269,6 @@ pub(crate) struct Foo();
 
 // #2125
 pub struct ReadinessCheckRegistry(Mutex<HashMap<Arc<String>, Box<Fn() -> ReadinessCheck + Sync + Send>>>);
+
+// #2144 unit struct with generics
+struct MyBox<T:?Sized>;
diff --git a/tests/target/structs.rs b/tests/target/structs.rs
index 1628c96f555..4192019a1e6 100644
--- a/tests/target/structs.rs
+++ b/tests/target/structs.rs
@@ -313,3 +313,6 @@ pub(crate) struct Foo();
 pub struct ReadinessCheckRegistry(
     Mutex<HashMap<Arc<String>, Box<Fn() -> ReadinessCheck + Sync + Send>>>,
 );
+
+// #2144 unit struct with generics
+struct MyBox<T: ?Sized>;