diff --git a/nixos/k3s.nix b/nixos/k3s.nix
index 825103a3..0b22550d 100644
--- a/nixos/k3s.nix
+++ b/nixos/k3s.nix
@@ -31,6 +31,7 @@ in {
         "--tls-san nixquick.local"
         "--tls-san biskcomp.local"
         "--tls-san jimi-hendnix.local"
+        "--tls-san dev.railbird.ai"
       ];
       containerdConfigTemplate = ''
         {{ template "base" . }}