diff --git a/dat/.gitattributes b/dat/.gitattributes
index cf71f9633..a15ea206f 100644
--- a/dat/.gitattributes
+++ b/dat/.gitattributes
@@ -2,6 +2,7 @@
 *.des	NHSUBST
 *.txt	NHSUBST
 *.lua	NHSUBST
+luahelper NHSUBST
 data.base NHSUBST
 symbols NHSUBST
 tribute NHSUBST
diff --git a/dat/luahelper b/dat/luahelper
index f06c9c367..5db4f831b 100644
--- a/dat/luahelper
+++ b/dat/luahelper
@@ -1,4 +1,4 @@
-# NetHack 5.0  luahelper    $NHDT-Date: $  $NHDT-Branch: NetHack-3.7 $
+# NetHack 5.0  luahelper    $NHDT-Date: 1777237994 2026/04/26 16:13:14 $  $NHDT-Branch: NetHack-5.0 $
 #
 #  Makefile to assist developers in adding lines to various build
 #  Makefiles, or project files, as lua files are added or removed.