diff --git a/acir_field/src/generic_ark.rs b/acir_field/src/generic_ark.rs
index 68a6f1ea9..1efed1554 100644
--- a/acir_field/src/generic_ark.rs
+++ b/acir_field/src/generic_ark.rs
@@ -322,7 +322,7 @@ impl<F: PrimeField> FieldElement<F> {
     fn mask_to_be_bytes(&self, num_bits: u32) -> Vec<u8> {
         let mut bytes = self.to_be_bytes();
         mask_vector_le(&mut bytes, num_bits as usize);
-        bytes.to_vec()
+        bytes
     }
 
     fn and_xor(&self, rhs: &FieldElement<F>, num_bits: u32, is_xor: bool) -> FieldElement<F> {