diff --git a/nixos/hosts/GLaDOS/configuration.nix b/nixos/hosts/GLaDOS/configuration.nix
index c7dff7e..426ff2e 100644
--- a/nixos/hosts/GLaDOS/configuration.nix
+++ b/nixos/hosts/GLaDOS/configuration.nix
@@ -67,6 +67,11 @@
     };
   };
 
+  programs.mangohud = {
+    enable = true;
+    enableSessionWide = true;
+  };
+
   boot.loader.systemd-boot.enable = lib.mkForce false;
 
   boot.lanzaboote = {