diff --git a/hooks/templates/config_custom.php.erb b/hooks/templates/config_custom.php.erb
index 44582499e84d711218152a2f0a5c17dcfb12ff55..7cd0f50e77e1c65c52fa6d707f2be4b6032b8f73 100644
--- a/hooks/templates/config_custom.php.erb
+++ b/hooks/templates/config_custom.php.erb
@@ -26,7 +26,7 @@ return [
             'debugLevel'   => 0,
         ]
     ],
-    'banner' => <%= @replace["banner"] %>,
+    'banner' => '<%= @replace["banner"] %>',
 
     // ----------------------------------------------------------------------