diff --git a/src/test/ui/chalkify/trait-objects.stderr b/src/test/ui/chalkify/trait-objects.stderr
index 098bd2d3226e5..422d39742eb55 100644
--- a/src/test/ui/chalkify/trait-objects.stderr
+++ b/src/test/ui/chalkify/trait-objects.stderr
@@ -22,6 +22,10 @@ LL |     f(2);
    |     ^^^^ expected an `Fn<(i32,)>` closure, found `dyn Fn(i32) -> i32`
    |
    = help: the trait `Fn<(i32,)>` is not implemented for `dyn Fn(i32) -> i32`
+help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement
+   |
+LL | fn main() where dyn Fn(i32) -> i32: Fn<(i32,)> {
+   |           ++++++++++++++++++++++++++++++++++++
 
 error: aborting due to 3 previous errors