diff --git a/src/error/iter_result.md b/src/error/iter_result.md
index cef97ae212..3b03090d5d 100644
--- a/src/error/iter_result.md
+++ b/src/error/iter_result.md
@@ -24,8 +24,7 @@ fn main() {
     let strings = vec!["tofu", "93", "18"];
     let numbers: Vec<_> = strings
         .into_iter()
-        .map(|s| s.parse::<i32>())
-        .filter_map(Result::ok)
+        .filter_map(|s| s.parse::<i32>().ok())
         .collect();
     println!("Results: {:?}", numbers);
 }