diff --git a/ethereum/oracles/src/noir/circuit/abi.test.ts b/ethereum/oracles/src/noir/circuit/abi.test.ts
index 13034b06..95e5d8fb 100644
--- a/ethereum/oracles/src/noir/circuit/abi.test.ts
+++ b/ethereum/oracles/src/noir/circuit/abi.test.ts
@@ -10,9 +10,7 @@ describe('abi', () => {
     const privateParam = { name: 'b', type, visibility: 'private' } as const;
     const abi: Abi = {
       parameters: [publicParam, privateParam],
-      param_witnesses: {},
       return_type: null,
-      return_witnesses: [],
       error_types: {}
     };
 
diff --git a/ethereum/oracles/src/noir/circuit/abi.ts b/ethereum/oracles/src/noir/circuit/abi.ts
index 89b6e82e..48c3276a 100644
--- a/ethereum/oracles/src/noir/circuit/abi.ts
+++ b/ethereum/oracles/src/noir/circuit/abi.ts
@@ -11,9 +11,7 @@ export function publicInputs(abi: Abi): Abi {
 export function returnValues(abi: Abi): Abi {
   return {
     parameters: [],
-    param_witnesses: {},
     error_types: {},
     return_type: abi.return_type,
-    return_witnesses: abi.return_witnesses
   };
 }