diff --git a/benches/bench.rs b/benches/bench.rs
index 62cc8d4..571e18b 100644
--- a/benches/bench.rs
+++ b/benches/bench.rs
@@ -84,7 +84,7 @@ type HashManyFn<A> = unsafe fn(
     inputs: &[&A],
     key: &[u8; blake3::KEY_LEN],
     offset: u64,
-    offset_deltas: &[u64; 16],
+    offset_deltas: &[u64; 17],
     flags: u8,
     flags_start: u8,
     flags_end: u8,
@@ -108,7 +108,7 @@ fn bench_many_chunks_fn(b: &mut Bencher, f: HashManyFn<[u8; CHUNK_LEN]>, degree:
                 &input_arrays[..],
                 &[0; KEY_LEN],
                 0,
-                &[0; 16],
+                &[0; 17],
                 0,
                 0,
                 0,
@@ -154,7 +154,7 @@ fn bench_many_parents_fn(b: &mut Bencher, f: HashManyFn<[u8; BLOCK_LEN]>, degree
                 &input_arrays[..],
                 &[0; KEY_LEN],
                 0,
-                &[0; 16],
+                &[0; 17],
                 0,
                 0,
                 0,