diff --git a/crates/re_data_store/benches/arrow2.rs b/crates/re_data_store/benches/arrow2.rs
index 3955a793e8914..b14efa614b6ae 100644
--- a/crates/re_data_store/benches/arrow2.rs
+++ b/crates/re_data_store/benches/arrow2.rs
@@ -8,7 +8,7 @@ static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
 
 use std::sync::Arc;
 
-use arrow2::array::{Array, FixedSizeListArray, PrimitiveArray, StructArray};
+use arrow2::array::{Array, PrimitiveArray, StructArray};
 use criterion::Criterion;
 use itertools::Itertools;
 
@@ -274,8 +274,9 @@ fn estimated_size_bytes(c: &mut Criterion) {
                 ArrayKind::Primitive => {
                     bench_downcast_first::<PrimitiveArray<u64>>(&mut group, kind);
                 }
-                ArrayKind::Struct => bench_downcast_first::<FixedSizeListArray>(&mut group, kind),
-                ArrayKind::StructLarge => bench_downcast_first::<StructArray>(&mut group, kind),
+                ArrayKind::Struct | ArrayKind::StructLarge => {
+                    bench_downcast_first::<StructArray>(&mut group, kind);
+                }
             }
 
             fn bench_downcast_first<T: arrow2::array::Array + Clone>(