diff --git a/hosts/p14s/configuration.nix b/hosts/p14s/configuration.nix
index 73c93c1..6e8b8a7 100644
--- a/hosts/p14s/configuration.nix
+++ b/hosts/p14s/configuration.nix
@@ -181,7 +181,9 @@
 
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ 22 ];
-  # networking.firewall.allowedUDPPorts = [ ... ];
+  networking.firewall.allowedUDPPorts = [
+    24727 # Auto discovery for AusweisApp  
+  ];
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;