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diff --git a/src/test/ui/compile-fail-migration/object-does-not-impl-trait.rs b/src/test/ui/compile-fail-migration/object-does-not-impl-trait.rs
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index 00000000000..30f8d5e2f45
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+++ b/src/test/ui/compile-fail-migration/object-does-not-impl-trait.rs
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+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Test that an object type `Box<Foo>` is not considered to implement the
+// trait `Foo`. Issue #5087.
+
+trait Foo {}
+fn take_foo<F:Foo>(f: F) {}
+fn take_object(f: Box<Foo>) { take_foo(f); }
+//~^ ERROR `std::boxed::Box<dyn Foo>: Foo` is not satisfied
+fn main() {}