diff --git a/docs/in-depth/testing.md b/docs/in-depth/testing.md
index caa3a76..85ace6e 100644
--- a/docs/in-depth/testing.md
+++ b/docs/in-depth/testing.md
@@ -60,7 +60,7 @@ In `package.json`, add a new `test-integration` script and add the new integrati
 
 ```json
   "scripts": {
-    "test": "export TS_NODE_PROJECT='./tsconfig.test.json' && npm run test-unit && npm run test-integration",
+    "test": "npm run test-unit && npm run test-integration",
     "test-integration": "npm run build && mocha test/integration/**/*.ts",
   }
 ```
diff --git a/package.json b/package.json
index 00d52b1..1c5dbd6 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "push-main": "rollup -c --environment DEST:main",
     "push-pserver": "rollup -c --environment DEST:pserver",
     "push-sim": "rollup -c --environment DEST:sim",
-    "test": "export TS_NODE_PROJECT='./tsconfig.test.json' && npm run test-unit",
+    "test": "npm run test-unit",
     "test-unit": "mocha test/unit/**/*.ts",
     "test-integration": "echo 'See docs/in-depth/testing.md for instructions on enabling integration tests'",
     "watch-main": "rollup -cw --environment DEST:main",
diff --git a/test/mocha.opts b/test/mocha.opts
index 58c19f9..d387698 100644
--- a/test/mocha.opts
+++ b/test/mocha.opts
@@ -1,4 +1,4 @@
---require test/setup-node.js
+--require test/setup-mocha.js
 --require ts-node/register
 --require tsconfig-paths/register
 --ui bdd
diff --git a/test/setup-node.js b/test/setup-mocha.js
similarity index 75%
rename from test/setup-node.js
rename to test/setup-mocha.js
index 1975df8..8d3ac8a 100644
--- a/test/setup-node.js
+++ b/test/setup-mocha.js
@@ -4,3 +4,6 @@ global.mocha = require('mocha');
 global.chai = require('chai');
 global.sinon = require('sinon');
 global.chai.use(require('sinon-chai'));
+
+// Override ts-node compiler options
+process.env.TS_NODE_PROJECT = 'tsconfig.test.json'