diff --git a/config/hosts/matrix/nginx.nix b/config/hosts/matrix/nginx.nix
index f498456..03dba97 100644
--- a/config/hosts/matrix/nginx.nix
+++ b/config/hosts/matrix/nginx.nix
@@ -27,13 +27,13 @@
           addr = "0.0.0.0";
           port = 8443;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
         {
           addr = "0.0.0.0";
           port = 8448;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
       ];
 
diff --git a/config/hosts/netbox/nginx.nix b/config/hosts/netbox/nginx.nix
index bf51ebe..2673cdc 100644
--- a/config/hosts/netbox/nginx.nix
+++ b/config/hosts/netbox/nginx.nix
@@ -35,7 +35,7 @@
           addr = "0.0.0.0";
           port = 8443;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
       ];
 
diff --git a/config/hosts/public-web-static/virtualHosts/branding-resources.hamburg.ccc.de.nix b/config/hosts/public-web-static/virtualHosts/branding-resources.hamburg.ccc.de.nix
index a37baf1..a28f77c 100644
--- a/config/hosts/public-web-static/virtualHosts/branding-resources.hamburg.ccc.de.nix
+++ b/config/hosts/public-web-static/virtualHosts/branding-resources.hamburg.ccc.de.nix
@@ -30,7 +30,7 @@ in
           addr = "0.0.0.0";
           port = 8443;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
       ];
 
diff --git a/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix b/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix
index 5af4ab9..a72703a 100644
--- a/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix
+++ b/config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix
@@ -39,7 +39,7 @@ in
           addr = "0.0.0.0";
           port = 8443;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
       ];
 
diff --git a/config/hosts/public-web-static/virtualHosts/next.hamburg.ccc.de.nix b/config/hosts/public-web-static/virtualHosts/next.hamburg.ccc.de.nix
index 592d04a..a0dff81 100644
--- a/config/hosts/public-web-static/virtualHosts/next.hamburg.ccc.de.nix
+++ b/config/hosts/public-web-static/virtualHosts/next.hamburg.ccc.de.nix
@@ -23,7 +23,7 @@
           addr = "0.0.0.0";
           port = 8443;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
       ];
 
diff --git a/config/hosts/public-web-static/virtualHosts/spaceapi.hamburg.ccc.de.nix b/config/hosts/public-web-static/virtualHosts/spaceapi.hamburg.ccc.de.nix
index 21303dc..7852639 100644
--- a/config/hosts/public-web-static/virtualHosts/spaceapi.hamburg.ccc.de.nix
+++ b/config/hosts/public-web-static/virtualHosts/spaceapi.hamburg.ccc.de.nix
@@ -23,7 +23,7 @@
           addr = "0.0.0.0";
           port = 8443;
           ssl = true;
-          extraParameters = [ "proxy_protocol" ];
+          proxyProtocol = true;
         }
       ];