diff --git a/DOCUMENT.md b/DOCUMENT.md
index a344e75..15e7b95 100644
--- a/DOCUMENT.md
+++ b/DOCUMENT.md
@@ -303,7 +303,7 @@ await client.user.setAccentColor('RED'); // set color same as Embed.setColor()
 // Set Banner
 await client.user.setBanner('image file / image url'); // same as setAvatar & Require Nitro level 2
 // Set Discord Tag
-await client.user.setDiscriminator('1234', 'password'); // #1234
+await client.user.setDiscriminator('1234', 'password'); // #1234 & Require Nitro
 // Set About me
 await client.user.setAboutMe('Hello World');
 // Set Email
diff --git a/package.json b/package.json
index 05f6b05..cb09887 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
     "bignumber.js": "^9.0.2",
     "chalk": "^4.1.2",
     "discord-api-types": "^0.27.3",
+    "discord-bettermarkdown": "^1.1.0",
     "discord-rpc-contructor": "^1.0.5",
     "discord.js": "^13.6.0",
     "form-data": "^4.0.0",
diff --git a/src/structures/ClientUser.js b/src/structures/ClientUser.js
index 5f5374c..510e314 100644
--- a/src/structures/ClientUser.js
+++ b/src/structures/ClientUser.js
@@ -174,6 +174,7 @@ class ClientUser extends User {
 	 * @returns {Promise}
 	 */
 	setDiscriminator(discriminator, password) {
+		if (!this.nitro) throw new Error('You must be a Nitro User to change your discriminator.');
 		if (!password && !this.client.password)
 			throw new Error('A password is required to change a discriminator.');
 		return this.edit({