diff --git a/rollup.config.js b/rollup.config.js
index f914fe5..8fbb4b0 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -3,36 +3,25 @@ import resolve from '@rollup/plugin-node-resolve'
 import sveld from 'sveld'
 import pkg from './package.json'
 
-const name = pkg.name
-  .replace(/^(@\S+\/)?(svelte-)?(\S+)/, '$3')
-  .replace(/^\w/, m => m.toUpperCase())
-  .replace(/-\w/g, m => m[1].toUpperCase())
+export default ['es', 'umd'].map(format => {
+  const UMD = format === 'umd'
 
-const svelteConfig = {
-  input: pkg.svelte,
-  output: [
-    { file: pkg.module, format: 'es' },
-    { file: pkg.main, format: 'umd', name },
-  ],
-  external: Object.keys(pkg.dependencies),
-  plugins: [
-    svelte({
-      emitCss: false,
-      compilerOptions: {
-        generate: 'ssr',
-      },
-    }),
-    resolve(),
-    sveld(),
-  ],
-}
+  const svelteConfig = {
+    emitCss: false,
+  }
 
-// const preprocessConfig = {
-//   input: 'support/preprocess.js',
-//   output: [
-//     { file: './lib/preprocess.mjs', format: 'es' },
-//     { file: './lib/preprocess.js', format: 'cjs' },
-//   ],
-// }
+  if (UMD) {
+    svelteConfig.compilerOptions = { generate: 'ssr' }
+  }
 
-export default [svelteConfig]
+  return {
+    input: pkg.svelte,
+    output: {
+      file: UMD ? pkg.main : pkg.module,
+      format,
+      name: UMD ? pkg.name : undefined,
+    },
+    external: Object.keys(pkg.dependencies),
+    plugins: [svelte(svelteConfig), resolve(), UMD && sveld()],
+  }
+})