diff --git a/explainer/async_fn_in_dyn_trait/generalizing_from_box_to_dynx.md b/explainer/async_fn_in_dyn_trait/generalizing_from_box_to_dynx.md
index 099a3c8..5c1d773 100644
--- a/explainer/async_fn_in_dyn_trait/generalizing_from_box_to_dynx.md
+++ b/explainer/async_fn_in_dyn_trait/generalizing_from_box_to_dynx.md
@@ -115,7 +115,7 @@ struct FutureVtable<O> {
     ///
     /// Unsafe condition: Expects the output from `IntoRawPointer::into_raw`
     /// which must not have already been freed.
-    poll_fn: unsafe fn(*mut (), cx: &mut Context<'_>) -> Ready<()>,
+    poll_fn: unsafe fn(*mut (), cx: &mut Context<'_>) -> Ready<O>,
     
     /// Frees the memory for the pointer to future.
     ///
@@ -176,4 +176,4 @@ impl<O> Drop for dynx Future<Output = O> {
         }
     }
 }
-```
\ No newline at end of file
+```