diff --git a/config/services.yaml b/config/services.yaml
index dc3f0f5..e03b5d4 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -5,6 +5,7 @@
 # https://symfony.com/doc/current/best_practices.html#use-parameters-for-application-configuration
 parameters:
     env(EMPTY): ''
+    EMPTY: ''
 
 services:
     # default configuration for services in *this* file