diff --git a/test/smoke/src/main.ts b/test/smoke/src/main.ts
index 17122480168..f4231463a88 100644
--- a/test/smoke/src/main.ts
+++ b/test/smoke/src/main.ts
@@ -36,7 +36,7 @@ import { setup as setupDataMultirootTests } from './areas/multiroot/multiroot.te
 import { setup as setupDataLocalizationTests } from './areas/workbench/localization.test';
 import { setup as setupLaunchTests } from './areas/workbench/launch.test';
 
-const tmpDir = tmp.dirSync({ name: 't' }) as { name: string; removeCallback: Function; };
+const tmpDir = tmp.dirSync({ prefix: 't' }) as { name: string; removeCallback: Function; };
 const testDataPath = tmpDir.name;
 process.once('exit', () => {
 	try {