diff --git a/outdated/sys/msdos/.gitattributes b/outdated/sys/msdos/.gitattributes
new file mode 100644
index 000000000..b64bea0b5
--- /dev/null
+++ b/outdated/sys/msdos/.gitattributes
@@ -0,0 +1,2 @@
+* NH_filestag=(file%s_for_deprecated_real_mode_msdos_version)
+