diff --git a/src/Thujohn/Analytics/AnalyticsServiceProvider.php b/src/Thujohn/Analytics/AnalyticsServiceProvider.php
index d9a445a..66b1572 100644
--- a/src/Thujohn/Analytics/AnalyticsServiceProvider.php
+++ b/src/Thujohn/Analytics/AnalyticsServiceProvider.php
@@ -29,7 +29,7 @@ public function boot()
 	public function register()
 	{
 		$this->app->bind('Thujohn\Analytics\Analytics', function ($app) {
-			if(!\File::exists($app['config']->get('analytics::certificate_path')))
+			if(!$app['files']->exists($app['config']->get('analytics::certificate_path')))
 			{
 				throw new \Exception("Can't find the .p12 certificate in: " . $app['config']->get('analytics::certificate_path'));
 			}
@@ -67,4 +67,4 @@ public function provides()
 		return array('analytics');
 	}
 
-}
\ No newline at end of file
+}