diff --git a/srcpkgs/lua51/update b/srcpkgs/lua51/update
new file mode 100644
index 0000000000..8b175c6f0f
--- /dev/null
+++ b/srcpkgs/lua51/update
@@ -0,0 +1 @@
+pattern="lua-\K5.1[\d.]+(?=\.tar)"