1 files changed, 4 insertions, 3 deletions
diff --git a/packages/0x.js/test/0x.js_test.ts b/packages/0x.js/test/0x.js_test.ts
index b4baecb1e..be2a94482 100644
--- a/packages/0x.js/test/0x.js_test.ts
+++ b/packages/0x.js/test/0x.js_test.ts
@@ -48,10 +48,11 @@ describe('ZeroEx library', () => {
         const ethSignSignature =
             '0x1B61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc3340349190569279751135161d22529dc25add4f6069af05be04cacbda2ace225403';
         const address = '0x5409ed021d9299bf6814279a6a1411a7e866a631';
+        const bytes32Zeros = '0x0000000000000000000000000000000000000000000000000000000000000000';
         it("should return false if the data doesn't pertain to the signature & address", async () => {
-            return expect((zeroEx.exchange as any).isValidSignatureAsync('0x0', address, ethSignSignature)).to.become(
-                false,
-            );
+            return expect(
+                (zeroEx.exchange as any).isValidSignatureAsync(bytes32Zeros, address, ethSignSignature),
+            ).to.become(false);
         });
         it("should return false if the address doesn't pertain to the signature & data", async () => {
             const validUnrelatedAddress = '0x8b0292b11a196601ed2ce54b665cafeca0347d42';