diff --git a/benches/future_children.rs b/benches/future_children.rs
index fcc4ed3..010393e 100644
--- a/benches/future_children.rs
+++ b/benches/future_children.rs
@@ -1,4 +1,4 @@
-use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion};
 use othello::{board::Board, future_moves::FutureMoves, piece::Piece};
 use std::time::Duration;
 
@@ -15,7 +15,8 @@ fn criterion_benchmark(c: &mut Criterion) {
     group.sample_size(10000);
 
     for (depth, expire) in (2..6).zip([EXPIRE].into_iter().cycle()) {
-        group.throughput(Throughput::Elements(depth as u64));
+        // TODO! maybe somehow get throughput from `extend_layers`?
+        // group.throughput(Throughput::Elements(depth as u64));
         group.bench_with_input(BenchmarkId::from_parameter(depth), &depth, |b, depth| {
             b.iter(|| extend_layers_test(*depth, expire));
         });