diff --git a/adminSiteServer/appClass.tsx b/adminSiteServer/appClass.tsx
index 7754fa5d79c..09fe4867bb0 100644
--- a/adminSiteServer/appClass.tsx
+++ b/adminSiteServer/appClass.tsx
@@ -160,6 +160,8 @@ export class OwidAdminApp {
                 // https://vitejs.dev/guide/ssr
                 const { createServer } = await import("vite")
                 const vite = await createServer({
+                    configFile: "vite.config-site.mts",
+                    css: { devSourcemap: true },
                     server: { middlewareMode: true },
                     appType: "custom",
                     base: "/",
diff --git a/package.json b/package.json
index 633077c4df1..7912d51f535 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
         "refreshPageviews": "tsx --tsconfig tsconfig.tsx.json db/refreshPageviewsFromDatasette.ts",
         "revertLastDbMigration": "tsx --tsconfig tsconfig.tsx.json node_modules/typeorm/cli.js migration:revert -d db/dataSource.ts",
         "startAdminServer": "node --enable-source-maps ./itsJustJavascript/adminSiteServer/app.js",
-        "startAdminDevServer": "tsx watch --tsconfig tsconfig.tsx.json adminSiteServer/app.tsx",
+        "startAdminDevServer": "tsx watch --ignore '**.mjs' --tsconfig tsconfig.tsx.json adminSiteServer/app.tsx",
         "startLocalCloudflareFunctions": "wrangler pages dev localBake --compatibility-date 2023-10-09",
         "startDeployQueueServer": "node --enable-source-maps ./itsJustJavascript/baker/startDeployQueueServer.js",
         "startLernaWatcher": "lerna watch --scope '@ourworldindata/*' -- lerna run build --scope=\\$LERNA_PACKAGE_NAME --include-dependents",