diff --git a/contracts/test/kmsVerifier/kmsVerifier.ts b/contracts/test/kmsVerifier/kmsVerifier.ts
index a22b152..07870e0 100644
--- a/contracts/test/kmsVerifier/kmsVerifier.ts
+++ b/contracts/test/kmsVerifier/kmsVerifier.ts
@@ -127,7 +127,7 @@ describe('KMSVerifier', function () {
       process.env.PRIVATE_KEY_KMS_SIGNER_1 = process.env.PRIVATE_KEY_KMS_SIGNER_0;
       const tx7 = await contract.requestUint16({ gasLimit: 5_000_000 });
       await tx7.wait();
-      await expect(awaitAllDecryptionResults()).to.revertedWithCustomError(kmsVerifier, 'KMSInvalidSigner'); // cannot use duplicated signatures if threshold is 2
+      await expect(awaitAllDecryptionResults()).to.revertedWith('KMS signature verification failed'); // cannot use duplicated signatures if threshold is 2
       const y5 = await contract.yUint16();
       expect(y5).to.equal(0);