diff --git a/code/frameworks/svelte-vite/src/plugins/svelte-docgen.ts b/code/frameworks/svelte-vite/src/plugins/svelte-docgen.ts
index 55fd98811af4..b9e8ac5fa762 100644
--- a/code/frameworks/svelte-vite/src/plugins/svelte-docgen.ts
+++ b/code/frameworks/svelte-vite/src/plugins/svelte-docgen.ts
@@ -42,7 +42,7 @@ function getNameFromFilename(filename: string) {
   return base[0].toUpperCase() + base.slice(1);
 }
 
-export function svelteDocgen(svelteOptions: Record<string, any>): PluginOption {
+export function svelteDocgen(svelteOptions: Record<string, any> = {}): PluginOption {
   const cwd = process.cwd();
   const { preprocess: preprocessOptions, logDocgen = false } = svelteOptions;
   const include = /\.(svelte)$/;
diff --git a/code/frameworks/svelte-vite/src/preset.ts b/code/frameworks/svelte-vite/src/preset.ts
index 0bca7efd1cde..bf7a7f742511 100644
--- a/code/frameworks/svelte-vite/src/preset.ts
+++ b/code/frameworks/svelte-vite/src/preset.ts
@@ -14,7 +14,7 @@ export const viteFinal: NonNullable<StorybookConfig['viteFinal']> = async (confi
   // TODO: set up eslint import to use typescript resolver
   // eslint-disable-next-line import/no-unresolved
   const { svelte, loadSvelteConfig } = await import('@sveltejs/vite-plugin-svelte');
-  const svelteConfig = (await loadSvelteConfig()) || {};
+  const svelteConfig = await loadSvelteConfig();
 
   // Add svelte plugin if the user does not have a Vite config of their own
   if (!(await hasVitePlugins(plugins, ['vite-plugin-svelte']))) {