diff --git a/flake.nix b/flake.nix
index 7269e6f..d618d75 100644
--- a/flake.nix
+++ b/flake.nix
@@ -215,6 +215,10 @@
                   # use expanded save panel by default
                   NSGlobalDomain.NSNavPanelExpandedStateForSaveMode = true;
                   NSGlobalDomain.NSNavPanelExpandedStateForSaveMode2 = true;
+
+                  CustomSystemPreferences = {
+                    "io.tailscale.ipn.macos"."FileSharingConfiguration" = "show";
+                  };
                 };
               };
             };