diff --git a/babysteps/_posts/2023-03-29-thoughts-on-async-closures.md b/babysteps/_posts/2023-03-29-thoughts-on-async-closures.md
index ddca2b04..ad143e40 100644
--- a/babysteps/_posts/2023-03-29-thoughts-on-async-closures.md
+++ b/babysteps/_posts/2023-03-29-thoughts-on-async-closures.md
@@ -42,7 +42,7 @@ Given that an async function is just a sync function that returns a future, perh
 
 
 ```rust
-fn call_twice_async<F>(op: impl FnMut(&str) -> F)
+async fn call_twice_async<F>(op: impl FnMut(&str) -> F)
 where
     F: Future<Output = ()>,
 {
diff --git a/content/blog/2023-03-29-thoughts-on-async-closures.markdown b/content/blog/2023-03-29-thoughts-on-async-closures.markdown
index ddca2b04..ad143e40 100644
--- a/content/blog/2023-03-29-thoughts-on-async-closures.markdown
+++ b/content/blog/2023-03-29-thoughts-on-async-closures.markdown
@@ -42,7 +42,7 @@ Given that an async function is just a sync function that returns a future, perh
 
 
 ```rust
-fn call_twice_async<F>(op: impl FnMut(&str) -> F)
+async fn call_twice_async<F>(op: impl FnMut(&str) -> F)
 where
     F: Future<Output = ()>,
 {