diff --git a/group_vars/all/plain.yml b/group_vars/all/plain.yml
index 0bc9e7d..da34c21 100644
--- a/group_vars/all/plain.yml
+++ b/group_vars/all/plain.yml
@@ -131,7 +131,7 @@ ip_whitelist_netgo:
   - "46.245.219.98/32" # netgo borken
   - "164.138.195.162/32" # netgo Aachen
 
-ip_whitelist: "{{ ip_whitelist_netgo + [shared_service_network] + [(shared_service_vpn_ip+'/32') | default('')] | select() }}"
+ip_whitelist: "{{ ip_whitelist_netgo + [shared_service_network] + [(shared_service_vpn_ip) | default('')] | select() }}"
 
 offsite_storage_server_ip: 142.132.155.83/32
 
diff --git a/group_vars/all/vpn.yml b/group_vars/all/vpn.yml
index b881e39..e384b65 100644
--- a/group_vars/all/vpn.yml
+++ b/group_vars/all/vpn.yml
@@ -5,4 +5,4 @@ shared_service_vpn_ip: "{{ stage_server_infos
   | map(attribute='public_ip')
   | list
   | first
-  | default('-') }}"
+  | default('') }}"