diff --git a/src/Plugin.js b/src/Plugin.js
index a74f88f..8afe921 100644
--- a/src/Plugin.js
+++ b/src/Plugin.js
@@ -2,11 +2,8 @@ import { join } from 'path';
 import { addSideEffect, addDefault, addNamed } from '@babel/helper-module-imports';
 
 function transCamel(_str, symbol) {
-  // e.g. QRCode
-  // First match: QR
-  // Second match: Code
-  const cells = _str.match(/([A-Z]+(?=[A-Z]))|([A-Z]?[^A-Z]+)/g) || [];
-  return cells.map(c => c.toLowerCase()).join(symbol);
+  const str = _str[0].toLowerCase() + _str.substr(1);
+  return str.replace(/([A-Z])/g, $1 => `${symbol}${$1.toLowerCase()}`);
 }
 
 function winPath(path) {
diff --git a/test/fixtures/qr-code/actual.js b/test/fixtures/qr-code/actual.js
deleted file mode 100644
index 62c1d3b..0000000
--- a/test/fixtures/qr-code/actual.js
+++ /dev/null
@@ -1,8 +0,0 @@
-import { QRCode } from 'antd';
-
-switch(QRCode){
-  case QRCode:
-    console.log('foo');
-  default:
-    console.log('bar')
-}
diff --git a/test/fixtures/qr-code/expected.js b/test/fixtures/qr-code/expected.js
deleted file mode 100644
index 1f747ba..0000000
--- a/test/fixtures/qr-code/expected.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import _QRCode from "antd/lib/qr-code";
-switch (_QRCode) {
-  case _QRCode:
-    console.log('foo');
-  default:
-    console.log('bar');
-}
\ No newline at end of file