diff --git a/nix/modules/dhcp.nix b/nix/modules/dhcp.nix
index 05d7227..1d82a44 100644
--- a/nix/modules/dhcp.nix
+++ b/nix/modules/dhcp.nix
@@ -25,6 +25,10 @@ in {
     omm = mkOption {
       type = types.str;
     };
+    tftpServer = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+    };
     reservations = mkOption {
       type = with types; listOf (submodule {
         options = {
@@ -126,7 +130,10 @@ in {
                 name = "magic_str";
                 data = "OpenMobilitySIP-DECT";
               }
-            ];
+            ] ++ lib.optional (!isNull cfg.tftpServer) {
+              name = "tftp-server-name";
+              data = cfg.tftpServer;
+            };
 
             reservations = map (r: {
               hostname = r.name;