diff --git a/book/src/user_guide/advanced_configuration.md b/book/src/user_guide/advanced_configuration.md
index d7be9bca..4f529005 100644
--- a/book/src/user_guide/advanced_configuration.md
+++ b/book/src/user_guide/advanced_configuration.md
@@ -100,8 +100,8 @@ fn bench(c: &mut Criterion) {
 
     let mut group = c.benchmark_group("throughput-example");
     for (i, elements) in [elements_1, elements_2].iter().enumerate() {
-        group.throughput(Throughput::Elements(elems.len() as u64));
-        group.bench_with_input(format!("Encode {}", i), elements, |elems, b| {
+        group.throughput(Throughput::Elements(elements.len() as u64));
+        group.bench_with_input(format!("Encode {}", i), elements, |b, elems| {
             b.iter(||encode(elems))
         });
     }