1 files changed, 18 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/box_default.fixed b/src/tools/clippy/tests/ui/box_default.fixed
index 7e9f074fd..59c0baf87 100644
--- a/src/tools/clippy/tests/ui/box_default.fixed
+++ b/src/tools/clippy/tests/ui/box_default.fixed
@@ -33,6 +33,7 @@ fn main() {
     let _vec4: Box<_> = Box::<Vec<bool>>::default();
     let _more = ret_ty_fn();
     call_ty_fn(Box::default());
+    issue_10381();
 }
 
 fn ret_ty_fn() -> Box<bool> {
@@ -65,3 +66,20 @@ fn issue_10089() {
         let _ = Box::<WeirdPathed>::default();
     };
 }
+
+fn issue_10381() {
+    #[derive(Default)]
+    pub struct Foo {}
+    pub trait Bar {}
+    impl Bar for Foo {}
+
+    fn maybe_get_bar(i: u32) -> Option<Box<dyn Bar>> {
+        if i % 2 == 0 {
+            Some(Box::<Foo>::default())
+        } else {
+            None
+        }
+    }
+
+    assert!(maybe_get_bar(2).is_some());
+}