diff --git a/src/ServiceProvider.php b/src/ServiceProvider.php
index 955dc9e..e92c2c4 100755
--- a/src/ServiceProvider.php
+++ b/src/ServiceProvider.php
@@ -59,7 +59,7 @@ protected function setupConfig()
      */
     public function register()
     {
-        $this->app->singleton(\easyWeChat\Foundation\Application::class, function ($app) {
+        $this->app->singleton(\EasyWeChat\Foundation\Application::class, function ($app) {
             $app = new Application(config('wechat'));
 
             if (config('wechat.use_laravel_cache')) {