diff --git a/dotcom-rendering/src/client/decidePublicPath.test.ts b/dotcom-rendering/src/client/decidePublicPath.test.ts
index 85ebbf20e3..3a8efbbe5f 100644
--- a/dotcom-rendering/src/client/decidePublicPath.test.ts
+++ b/dotcom-rendering/src/client/decidePublicPath.test.ts
@@ -44,7 +44,7 @@ describe('decidePublicPath', () => {
 	it('with production flag and localhost', () => {
 		process.env.NODE_ENV = 'production';
 		mockHostname('localhost');
-		expect(decidePublicPath()).toEqual('/assets/');
+		expect(decidePublicPath()).toEqual('http://localhost:3030/assets/');
 	});
 
 	it('with no flag', () => {