diff --git a/ipa-core/benches/dzkp_convert_prover.rs b/ipa-core/benches/dzkp_convert_prover.rs
index 8de84ce5d..c8f820bab 100644
--- a/ipa-core/benches/dzkp_convert_prover.rs
+++ b/ipa-core/benches/dzkp_convert_prover.rs
@@ -1,4 +1,4 @@
-//! Benchmark for the convert_prover function in dzkp_field.rs.
+//! Benchmark for the table_indices_prover function in dzkp_field.rs.
 
 use criterion::{criterion_group, criterion_main, BatchSize, Criterion};
 use ipa_core::protocol::context::dzkp_validator::MultiplicationInputsBlock;
@@ -9,7 +9,7 @@ fn convert_prover_benchmark(c: &mut Criterion) {
     group.bench_function("convert", |b| {
         b.iter_batched_ref(
             || thread_rng().gen(),
-            |input| input.table_indices_prover(),
+            |input: &mut MultiplicationInputsBlock| input.table_indices_prover(),
             BatchSize::SmallInput,
         )
     });
diff --git a/ipa-core/src/protocol/context/dzkp_validator.rs b/ipa-core/src/protocol/context/dzkp_validator.rs
index 77848c97d..1cfc09784 100644
--- a/ipa-core/src/protocol/context/dzkp_validator.rs
+++ b/ipa-core/src/protocol/context/dzkp_validator.rs
@@ -166,7 +166,7 @@ impl MultiplicationInputsBlock {
     }
 }
 
-#[cfg(test)]
+#[cfg(any(test, feature = "enable-benches"))]
 impl rand::prelude::Distribution<MultiplicationInputsBlock> for rand::distributions::Standard {
     fn sample<R: rand::Rng + ?Sized>(&self, rng: &mut R) -> MultiplicationInputsBlock {
         // Generate a random valid block of muliplication intermediates. "Valid" means