diff --git a/rollup.config.js b/rollup.config.js
index a16d32bd..9d5026a0 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -112,7 +112,9 @@ export default async function ({ watch }) {
           plugins: [
             { resolveFileUrl, resolveImportMeta },
             OMT({ loader: await omtLoaderPromise }),
-            serviceWorkerPlugin({ output: 'static/sw.js' }),
+            serviceWorkerPlugin({
+              output: 'static/serviceworker.js',
+            }),
             ...commonPlugins(),
             commonjs(),
             resolve(),
diff --git a/src/copy/sw.js b/src/copy/sw.js
new file mode 100644
index 00000000..b5767ccf
--- /dev/null
+++ b/src/copy/sw.js
@@ -0,0 +1,14 @@
+// I accidentally shipped with the wrong service worker name.
+// This picks up users that still might be using that version.
+// We'll be able to delete this file eventually.
+
+addEventListener('install', () => {
+  skipWaiting();
+});
+addEventListener('activate', async () => {
+  await self.registration.unregister();
+  const allClients = await clients.matchAll({
+    includeUncontrolled: true,
+  });
+  for (const client of allClients) client.navigate('/');
+});