diff --git a/xtrn/.gitignore b/xtrn/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..2583fd48ed9e5ddda93cc8154cf67fdf6110882c
--- /dev/null
+++ b/xtrn/.gitignore
@@ -0,0 +1,3 @@
+tbd/tbd.mnt
+tbd/tbdmap.dab
+tbd/tbdobj.dab