diff --git a/evomaintenance/defaults/main.yml b/evomaintenance/defaults/main.yml
index 89cf0bb3..b0a6e361 100644
--- a/evomaintenance/defaults/main.yml
+++ b/evomaintenance/defaults/main.yml
@@ -31,8 +31,8 @@ evomaintenance_urgency_tel: "06.00.00.00.00"
 
 evomaintenance_realm: "{{ evolinux_internal_domain }}"
 
-evomaintenance_api_endpoint: "https://example.com/api/"
-evomaintenance_api_key: "secretkey"
+evomaintenance_api_endpoint: Null
+evomaintenance_api_key: Null
 
 evomaintenance_default_hosts: []
 evomaintenance_additional_hosts: []
diff --git a/evomaintenance/tasks/main.yml b/evomaintenance/tasks/main.yml
index bc5907b5..5b09456e 100644
--- a/evomaintenance/tasks/main.yml
+++ b/evomaintenance/tasks/main.yml
@@ -5,8 +5,8 @@
 
 - assert:
     that:
-      - evomaintenance_api_endpoint != "https://example.com/api/"
-      - evomaintenance_api_key != "secretkey"
+      - evomaintenance_api_endpoint is not none
+      - evomaintenance_api_key is not none
     msg: evomaintenance api variables must be set
 
 - include: install_package_debian.yml