diff --git a/7.-Contoh-Custom-Plugins.md b/7.-Contoh-Custom-Plugins.md
index cd3b094..0b98360 100644
--- a/7.-Contoh-Custom-Plugins.md
+++ b/7.-Contoh-Custom-Plugins.md
@@ -876,6 +876,23 @@ return {
 	end,
 }
 ```
+- add null-ls config lua/custom/null-ls.lua
+```lua
+local null_ls = require("null-ls")
+local formatting = null_ls.builtins.formatting
+local diagnostics = null_ls.builtins.diagnostics
+local m = {
+	sources = {
+		formatting.clang_format.with({
+			filetypes = {
+				"cpp",
+				"c",
+			},
+		}),
+	},
+}
+return m
+```
 sumber : <br>
 https://github.com/p00f/clangd_extensions.nvim