diff --git a/acvm/src/lib.rs b/acvm/src/lib.rs
index 60609b1fd..d28b6d21f 100644
--- a/acvm/src/lib.rs
+++ b/acvm/src/lib.rs
@@ -113,7 +113,7 @@ pub trait PartialWitnessGenerator {
         inputs: &[FunctionInput],
         outputs: &[Witness],
     ) -> Result<pwg::OpcodeResolution, OpcodeResolutionError>;
-    fn hash_to_field128_security(
+    fn hash_to_field_128_security(
         &self,
         initial_witness: &mut BTreeMap<Witness, FieldElement>,
         inputs: &[FunctionInput],
@@ -347,7 +347,7 @@ mod test {
         ) -> Result<OpcodeResolution, OpcodeResolutionError> {
             panic!("Path not trodden by this test")
         }
-        fn hash_to_field128_security(
+        fn hash_to_field_128_security(
             &self,
             _initial_witness: &mut BTreeMap<Witness, FieldElement>,
             _inputs: &[FunctionInput],
diff --git a/acvm/src/pwg/blackbox.rs b/acvm/src/pwg/blackbox.rs
index 76c4870a1..7ccfebc61 100644
--- a/acvm/src/pwg/blackbox.rs
+++ b/acvm/src/pwg/blackbox.rs
@@ -80,7 +80,7 @@ pub(crate) fn solve(
             backend.pedersen(initial_witness, inputs, outputs)
         }
         BlackBoxFuncCall { name: BlackBoxFunc::HashToField128Security, inputs, outputs } => {
-            backend.hash_to_field128_security(initial_witness, inputs, outputs)
+            backend.hash_to_field_128_security(initial_witness, inputs, outputs)
         }
         BlackBoxFuncCall { name: BlackBoxFunc::EcdsaSecp256k1, inputs, outputs } => {
             backend.ecdsa_secp256k1(initial_witness, inputs, outputs)