diff --git a/systems/x86_64-linux/carbon/default.nix b/systems/x86_64-linux/carbon/default.nix
index 2167a3b..ef51ef1 100644
--- a/systems/x86_64-linux/carbon/default.nix
+++ b/systems/x86_64-linux/carbon/default.nix
@@ -23,6 +23,7 @@
     hardware.audio.enable = true;
 
     system.zfs.enable = true;
+    apps.yubikey.enable = true;
   };
 
   networking = {