diff --git a/config/broadcasting.php b/config/broadcasting.php
index 3d0c7cae8053..30f98d504181 100644
--- a/config/broadcasting.php
+++ b/config/broadcasting.php
@@ -32,9 +32,9 @@ return [
 
         'pusher' => [
             'driver' => 'pusher',
-            'key' => env('PUSHER_APP_KEY'),
-            'secret' => env('PUSHER_APP_SECRET'),
-            'app_id' => env('PUSHER_APP_ID'),
+            'key' => env('PUSHER_APP_KEY',''),
+            'secret' => env('PUSHER_APP_SECRET',''),
+            'app_id' => env('PUSHER_APP_ID',''),
             'options' => [
                 'host' => env('PUSHER_HOST', 'api-'.env('PUSHER_APP_CLUSTER', 'mt1').'.pusher.com'),
                 'port' => env('PUSHER_PORT', 443),