diff --git a/package.json b/package.json
index b08e4ab..dbd4c74 100644
--- a/package.json
+++ b/package.json
@@ -202,7 +202,8 @@
     "watch": "node esbuild.mjs --watch",
     "typecheck": "tsc --noEmit",
     "test": "vitest run",
-    "pretest:e2e": "npm run build && tsc -p tsconfig.e2e.json",
+    "clean:e2e": "node -e \"require('fs').rmSync('out/test',{recursive:true,force:true})\"",
+    "pretest:e2e": "npm run build && npm run clean:e2e && tsc -p tsconfig.e2e.json",
     "test:e2e": "node ./out/test/e2e/runTest.js",
     "smoke:live": "npm run build && node scripts/smoke-live-turn.mjs",
     "vscode:prepublish": "node esbuild.mjs"