diff --git a/benches/bench.rs b/benches/bench.rs
index 99efe12..f87796e 100644
--- a/benches/bench.rs
+++ b/benches/bench.rs
@@ -5,7 +5,7 @@
 extern crate test;
 
 use flatcontainer::impls::deduplicate::{CollapseSequence, ConsecutiveOffsetPairs};
-use flatcontainer::impls::offsets::OffsetStride;
+use flatcontainer::impls::offsets::OffsetOptimized;
 use flatcontainer::impls::tuple::{TupleABCRegion, TupleABRegion};
 use flatcontainer::{
     ColumnsRegion, Containerized, FlatStack, MirrorRegion, OwnedRegion, Push, Region, ReserveItems,
@@ -87,7 +87,7 @@ fn string10_copy_region(bencher: &mut Bencher) {
 #[bench]
 fn string10_copy_region_collapse(bencher: &mut Bencher) {
     _bench_copy_region::<
-        SliceRegion<CollapseSequence<ConsecutiveOffsetPairs<StringRegion>>, OffsetStride>,
+        SliceRegion<CollapseSequence<ConsecutiveOffsetPairs<StringRegion>>, OffsetOptimized>,
         _,
     >(bencher, vec![format!("grawwwwrr!"); 1024]);
 }