diff --git a/config/secure-headers.php b/config/secure-headers.php
index 6f379b6414..edad86dd4c 100644
--- a/config/secure-headers.php
+++ b/config/secure-headers.php
@@ -482,7 +482,7 @@
         ],
 
         'default-src' => [
-            'none'
+            'none',
         ],
 
         'base-uri' => [