diff --git a/docs/configuration/filetypes.md b/docs/configuration/filetypes.md
new file mode 100644
index 0000000000..4c02839945
--- /dev/null
+++ b/docs/configuration/filetypes.md
@@ -0,0 +1,26 @@
+---
+sidebar_position: 8
+---
+
+# File Types
+
+Custom file types can be managed in a `$XDG_CONFIG_HOME/nvim/filetype.lua` file.
+When the file exists, LazyVim will source it at startup.
+
+## Example
+
+```lua title=filetype.lua
+vim.filetype.add({
+  extension = {
+    tfstate = "json",
+    terraformrc = "hcl",
+  },
+  filename = {
+    ["Jenkinsfile"] = "groovy",
+    ["terraform.rc"] = "hcl",
+  },
+  pattern = {
+    [".*tfstate.backup"] = "json",
+  }
+})
+```