diff --git a/packages/webpack/src/plugins/dynamic-base.ts b/packages/webpack/src/plugins/dynamic-base.ts
index b51506de060..eba75dedfe1 100644
--- a/packages/webpack/src/plugins/dynamic-base.ts
+++ b/packages/webpack/src/plugins/dynamic-base.ts
@@ -21,7 +21,7 @@ export const DynamicBasePlugin = createUnplugin((options: DynamicBasePluginOptio
         return
       }
       const s = new MagicString(code)
-      s.append(`${options.globalPublicPath} = buildAssetsURL();\n`)
+      s.append(`\n${options.globalPublicPath} = buildAssetsURL();\n`)
       return {
         code: s.toString(),
         map: options.sourcemap