diff --git a/os-mods/common/default.nix b/os-mods/common/default.nix
index 84850e3..effc26a 100644
--- a/os-mods/common/default.nix
+++ b/os-mods/common/default.nix
@@ -208,11 +208,9 @@ in
 
   networking.firewall = {
     extraCommands = ''iptables -t raw -A OUTPUT -p udp -m udp --dport 137 -j CT --helper netbios-ns'';
-    allowedTCPPortRanges = [
-      {
-        from = 22;
-        to = 22;
-      } # ssh
+    allowedTCPPorts = [
+      22
+      # 54817
     ];
   };