diff --git a/tests/lib.expand.rs b/tests/lib.expand.rs
index b4fdec0..688852f 100644
--- a/tests/lib.expand.rs
+++ b/tests/lib.expand.rs
@@ -1,6 +1,8 @@
 #![feature(prelude_import)]
+#![doc = " Test"]
 #[prelude_import]
 use std::prelude::v1::*;
 #[macro_use]
 extern crate std;
+#[doc = " Test"]
 pub fn test() {}
diff --git a/tests/lib.rs b/tests/lib.rs
index 0303187..ee7b4a1 100644
--- a/tests/lib.rs
+++ b/tests/lib.rs
@@ -1 +1,4 @@
+//! Test
+
+/// Test
 pub fn test() {}