diff --git a/ops/nixos/lib/coredns/default.nix b/ops/nixos/lib/coredns/default.nix
index 0096507e89..b5d4a454c0 100644
--- a/ops/nixos/lib/coredns/default.nix
+++ b/ops/nixos/lib/coredns/default.nix
@@ -6,10 +6,10 @@
       source = ./zones;
     };
 
-    firewall.allowedTCPPorts = [
+    networking.firewall.allowedTCPPorts = [
       53  # DNS
     ];
-    firewall.allowedUDPPorts = [
+    networking.firewall.allowedUDPPorts = [
       53  # DNS
     ];