diff --git a/circuits/tests/register/register_ecdsa_sha1.test.ts b/circuits/tests/register/register_ecdsa_sha1.test.ts
index 17bbb0c04..7d3f45343 100644
--- a/circuits/tests/register/register_ecdsa_sha1.test.ts
+++ b/circuits/tests/register/register_ecdsa_sha1.test.ts
@@ -109,7 +109,7 @@ describe('Register - SHA1 WITH ECDSA', function () {
     try {
       const invalidInputs = {
         ...inputs,
-        signature_s: wrong_signature_s,
+        signature: [inputs.signature[0], wrong_signature_s],
       };
       await circuit.calculateWitness(invalidInputs);
       expect.fail('Expected an error but none was thrown.');
diff --git a/circuits/tests/register/register_ecdsa_sha256.test.ts b/circuits/tests/register/register_ecdsa_sha256.test.ts
index 09e1b487a..4a9d57e42 100644
--- a/circuits/tests/register/register_ecdsa_sha256.test.ts
+++ b/circuits/tests/register/register_ecdsa_sha256.test.ts
@@ -108,7 +108,7 @@ describe('Register - SHA256 WITH ECDSA', function () {
     try {
       const invalidInputs = {
         ...inputs,
-        signature_s: wrong_signature_s,
+        signature: [inputs.signature[0], wrong_signature_s],
       };
       await circuit.calculateWitness(invalidInputs);
       expect.fail('Expected an error but none was thrown.');