diff --git a/contracts/test-utils/test/mocha_blockchain.ts b/contracts/test-utils/test/mocha_blockchain.ts
index 8514dc3d20..e9404f6c3c 100644
--- a/contracts/test-utils/test/mocha_blockchain.ts
+++ b/contracts/test-utils/test/mocha_blockchain.ts
@@ -76,7 +76,7 @@ blockchainTests('mocha blockchain extensions', env => {
         });
 
         describe('subtests', () => {
-            require('./subtests/mocha_blockchain_1').define(env);
+            require('./subtests/mocha_blockchain_1').append(env);
         });
     });
 });
diff --git a/contracts/test-utils/test/subtests/mocha_blockchain_1.ts b/contracts/test-utils/test/subtests/mocha_blockchain_1.ts
index 408105ac3b..8c2fb0aae0 100644
--- a/contracts/test-utils/test/subtests/mocha_blockchain_1.ts
+++ b/contracts/test-utils/test/subtests/mocha_blockchain_1.ts
@@ -1,7 +1,7 @@
 import { blockchainTests, BlockchainTestsEnvironment, expect } from '../../src';
 
 // tslint:disable: no-default-export completed-docs
-export function define(env: BlockchainTestsEnvironment): void {
+export function append(env: BlockchainTestsEnvironment): void {
     blockchainTests('imported subtests', subtestsEnv => {
         it('shares the same environment object', () => {
             expect(subtestsEnv).to.eq(env);