diff --git a/modules/home-controller/wireguard.nix b/modules/home-controller/wireguard.nix
index f1848fad..d0d8b32e 100644
--- a/modules/home-controller/wireguard.nix
+++ b/modules/home-controller/wireguard.nix
@@ -19,6 +19,7 @@ in {
         ips = [cfg.ownIp];
         listenPort = 51899;
         privateKeyFile = cfg.wireguardPrivateKeyFile;
+        mtu = 1400;
         peers = [
           {
             # chonk