diff --git a/instances/sif/configuration.nix b/instances/sif/configuration.nix
index e67eb4a..c3101d9 100644
--- a/instances/sif/configuration.nix
+++ b/instances/sif/configuration.nix
@@ -369,6 +369,7 @@
     sudo = {
       fprintAuth = true;
       rootOK = true;
+      forwardXAuth = true;
       # enableGnomeKeyring = true;
       # text = ''
       #   auth		include		system-auth-fprintd