diff --git a/packages/wasm/test/integration.test.js b/packages/wasm/test/integration.test.js
index 2e4e7a6ffe33..b36c8a0c36d4 100644
--- a/packages/wasm/test/integration.test.js
+++ b/packages/wasm/test/integration.test.js
@@ -1,6 +1,15 @@
 /* global page, window */
+const fs = require('fs');
+const path = require('path');
+
 const HOST = `http://localhost:${process.env.PORT}`;
 
+if (!fs.existsSync(path.resolve(__dirname, '../../browser/build/bundle.js'))) {
+  throw new Error(
+    'ERROR: No browser bundle found in `packages/browser/build/`. Please run `yarn build` in the browser package before running wasm tests.',
+  );
+}
+
 describe('Wasm', () => {
   it('captured exception should include modified frames and debug_meta attribute', async () => {
     await page.goto(HOST);