diff --git a/code/addons/vitest/src/postinstall.ts b/code/addons/vitest/src/postinstall.ts
index 088a15793771..5d7d3c86e943 100644
--- a/code/addons/vitest/src/postinstall.ts
+++ b/code/addons/vitest/src/postinstall.ts
@@ -139,7 +139,7 @@ export default async function postInstall(options: PostinstallOptions) {
             {
               extends: '${viteConfig ? relative(dirname(browserWorkspaceFile), viteConfig) : ''}',
               plugins: [
-                storybookTest(),${vitestInfo.frameworkPluginCall ? '\n' + vitestInfo.frameworkPluginCall : ''}
+                storybookTest(),${vitestInfo.frameworkPluginCall ? '\n      ' + vitestInfo.frameworkPluginCall : ''}
               ],
               test: {
                 browser: {