diff --git a/instances/sif/configuration.nix b/instances/sif/configuration.nix
index c3101d9..cc3b3d7 100644
--- a/instances/sif/configuration.nix
+++ b/instances/sif/configuration.nix
@@ -370,6 +370,7 @@
       fprintAuth = true;
       rootOK = true;
       forwardXAuth = true;
+      logFailures = true;
       # enableGnomeKeyring = true;
       # text = ''
       #   auth		include		system-auth-fprintd