diff --git a/ftplugin/eruby.lua b/ftplugin/eruby.lua
new file mode 100644
index 0000000..7baeb45
--- /dev/null
+++ b/ftplugin/eruby.lua
@@ -0,0 +1,2 @@
+-- ftplugin/eruby.lua
+vim.b.autoformat = false