diff --git a/test/utils/SafeCast.test.js b/test/utils/SafeCast.test.js
index b9aaeb759..4e274c173 100644
--- a/test/utils/SafeCast.test.js
+++ b/test/utils/SafeCast.test.js
@@ -46,7 +46,6 @@ contract('SafeCast', async (accounts) => {
   describe('toUint256', () => {
     const maxInt256 = new BN('2').pow(new BN(255)).subn(1);
     const minInt256 = new BN('2').pow(new BN(255)).neg();
-    const maxUint256 = new BN('2').pow(new BN(256)).subn(1);
 
     it('casts 0', async function () {
       expect(await this.safeCast.toUint256(0)).to.be.bignumber.equal('0');