diff --git a/storage-proofs/porep/benches/encode.rs b/storage-proofs/porep/benches/encode.rs
index 686474e5f5..8d3b557a1a 100644
--- a/storage-proofs/porep/benches/encode.rs
+++ b/storage-proofs/porep/benches/encode.rs
@@ -53,7 +53,17 @@ fn kdf_benchmark(c: &mut Criterion) {
         let graph = &graph;
         let replica_id = replica_id.clone();
 
-        b.iter(|| black_box(create_label_exp(graph, &replica_id, &*exp_data, data, 1, 2)))
+        b.iter(|| {
+            black_box(create_label_exp(
+                graph,
+                None,
+                &replica_id,
+                &*exp_data,
+                data,
+                1,
+                2,
+            ))
+        })
     });
 
     group.bench_function("non-exp", |b| {
@@ -61,7 +71,7 @@ fn kdf_benchmark(c: &mut Criterion) {
         let graph = &graph;
         let replica_id = replica_id.clone();
 
-        b.iter(|| black_box(create_label(graph, &replica_id, &mut data, 1, 2)))
+        b.iter(|| black_box(create_label(graph, None, &replica_id, &mut data, 1, 2)))
     });
 
     group.finish();