diff --git a/src/index.ts b/src/index.ts
index 5ef70ea..1d96c54 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,7 +5,7 @@ import { transform } from '.'
 export * from './core/transform'
 export * from './types'
 
-const scriptSetupRE = /<script\s+setup/
+const scriptSetupRE = /<script\s(.*\s)?setup(\s.*)?>/
 
 export default createUnplugin<ScriptSetupTransformOptions>(options => ({
   name: 'unplugin-vue2-script-setup',