diff --git a/.gitignore b/.gitignore
index 6bc4134..5c2ad3a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 node_modules
 .cache
+dist/dev
diff --git a/package.json b/package.json
index 33f81ba..b21ae54 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "serve": "parcel dev.html",
+    "serve": "parcel -o dev.html -d dist/dev",
     "release": "parcel build speedscope.tsx"
   },
   "author": "",