diff --git a/ops/nixos/lib/blade.nix b/ops/nixos/lib/blade.nix
index e8208b67d9..9e4628f935 100644
--- a/ops/nixos/lib/blade.nix
+++ b/ops/nixos/lib/blade.nix
@@ -216,6 +216,7 @@ in {
 
     fonts.fontconfig.enable = false;
     programs.ssh.setXAuthLocation = false;
+    programs.ssh.forwardX11 = lib.mkForce false;
     security.pam.services.su.forwardXAuth = lib.mkForce false;
     services.fwupd.enable = lib.mkForce false;
     xdg.sounds.enable = false;