diff --git a/hosts/little-lightning/configuration.nix b/hosts/little-lightning/configuration.nix
index 076ca67..130e307 100644
--- a/hosts/little-lightning/configuration.nix
+++ b/hosts/little-lightning/configuration.nix
@@ -53,6 +53,8 @@
     }
   ];
 
+  security.pam.enableSudoTouchIdAuth = true;
+
   users.users.zynh = {
     name = "zynh";
     home = "/Users/zynh";