diff --git a/tfjs-core/package.json b/tfjs-core/package.json
index c430a1298a7..f748175f6b5 100644
--- a/tfjs-core/package.json
+++ b/tfjs-core/package.json
@@ -53,7 +53,7 @@
   },
   "scripts": {
     "build-ci": "./scripts/enumerate-tests.js --ci && tsc && yarn build-test-snippets",
-    "build": "./scripts/enumerate-tests.js && tsc",
+    "build": "node ./scripts/enumerate-tests.js && tsc",
     "build-npm": "./scripts/build-npm.sh",
     "build:bazel": "bazel build //...",
     "build-test-snippets": "yarn tsc --project ./scripts/test_snippets/tsconfig.json",
diff --git a/tfjs-core/scripts/enumerate-tests.js b/tfjs-core/scripts/enumerate-tests.js
index dad7c96a345..26b00019b45 100755
--- a/tfjs-core/scripts/enumerate-tests.js
+++ b/tfjs-core/scripts/enumerate-tests.js
@@ -44,7 +44,7 @@ const AUTOGEN_CLAUSE = `///// DO NOT EDIT: This file is auto-generated by ` +
 `;
 
 const fs = require('fs');
-const path = require('path');
+const path = require('path').posix;
 const argv = require('yargs').argv;
 
 function findTestFiles(dir, files) {