diff --git a/src/commands/config/channels.ts b/src/commands/config/channels.ts
index ded6dee..2833038 100644
--- a/src/commands/config/channels.ts
+++ b/src/commands/config/channels.ts
@@ -3,6 +3,7 @@ import { prisma } from "@/utils/database"
 import { errorEmbed, successEmbed } from "@/utils/embeds"
 import { config } from "@/config"
 import { backSpace } from "@/utils/textUtils"
+import { PermissionUtils } from "@/utils/permissionTester"
 
 export const data = new SlashCommandBuilder()
     .setName("channels")
@@ -47,7 +48,7 @@ export const data = new SlashCommandBuilder()
 export async function execute(interaction: CommandInteraction) {
     await interaction.deferReply({ ephemeral: true, fetchReply: true })
     const user = interaction.guild?.members.cache.get(interaction.client.user.id)
-    if (!(user?.permissions.has(PermissionFlagsBits.ManageChannels) || user?.permissions.has(PermissionFlagsBits.Administrator)) && config.OWNER_ID !== interaction.user.id) {
+    if (!await PermissionUtils.hasPermission(interaction, [PermissionFlagsBits.ManageChannels], false)) {
         await interaction.editReply({ embeds: [errorEmbed(interaction, new Error("Vous n'avez pas la permission de changer la configuration."))] })
         return
     }
diff --git a/src/commands/config/rename.ts b/src/commands/config/rename.ts
index e8d7093..2b60185 100644
--- a/src/commands/config/rename.ts
+++ b/src/commands/config/rename.ts
@@ -1,6 +1,7 @@
 import { CommandInteraction, SlashCommandBuilder, PermissionFlagsBits, InteractionContextType } from "discord.js"
 import { errorEmbed, successEmbed } from "@/utils/embeds"
-import { config } from "@/config"
+import { PermissionUtils } from "@/utils/permissionTester"
+import { logger } from "@/utils/logger"
 
 export const data = new SlashCommandBuilder()
     .setName("rename")
@@ -18,8 +19,8 @@ export const data = new SlashCommandBuilder()
 
 export async function execute(interaction: CommandInteraction) {
     await interaction.deferReply({ ephemeral: true, fetchReply: true })
-    const user = interaction.guild?.members.cache.get(interaction.client.user.id)
-    if (!(user?.permissions.has(PermissionFlagsBits.ChangeNickname) || user?.permissions.has(PermissionFlagsBits.Administrator)) && config.OWNER_ID !== interaction.user.id) {
+    logger.debug("Checking if user has permission to change bot's name")
+    if (!await PermissionUtils.hasPermission(interaction, [PermissionFlagsBits.ManageChannels], false)) {
         await interaction.editReply({ embeds: [errorEmbed(interaction, new Error("Vous n'avez pas la permission de changer le nom du bot"))] })
         return
     }
diff --git a/src/commands/fun/quiz/leaderboard.ts b/src/commands/fun/quiz/leaderboard.ts
index 1e8f273..a03a5d6 100644
--- a/src/commands/fun/quiz/leaderboard.ts
+++ b/src/commands/fun/quiz/leaderboard.ts
@@ -15,6 +15,7 @@ export async function execute(interaction: CommandInteraction) {
         }
     })
 
+    // Sort the users by the ratio of good answers (and the most good answers)
     users.sort((a, b) => {
         const ratioA = a.quizGoodAnswers / (a.quizGoodAnswers + a.quizBadAnswers)
         const ratioB = b.quizGoodAnswers / (b.quizGoodAnswers + b.quizBadAnswers)
diff --git a/src/index.ts b/src/index.ts
index 20bf2a9..4eb90d3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -8,6 +8,7 @@ import { CronJob } from 'cron'
 import { prisma } from "./utils/database"
 import { initAi, generateWithGoogle } from "./utils/intelligence"
 import { maintenance } from "./commands/dev/maintenance"
+import { PermissionUtils } from "./utils/permissionTester"
 
 export const client = new Client({
     intents: [
@@ -51,8 +52,7 @@ client.on(Events.InteractionCreate, async (interaction) => {
     if (interaction.isCommand()) {
         try {
             if(maintenance) {
-                const user = await interaction.guild?.members.fetch(interaction.user.id)
-                if ((!user?.permissions.has(PermissionFlagsBits.Administrator) && config.OWNER_ID !== interaction.user.id) && maintenance) {
+                if(!await PermissionUtils.hasPermission(interaction, [], false)) {
                     await interaction.reply({ embeds: [errorEmbed(interaction, new Error("Le bot est en maintenance, veuillez réessayer plus tard."))], ephemeral: true })
                     return
                 }
diff --git a/src/utils/permissionTester.ts b/src/utils/permissionTester.ts
new file mode 100644
index 0000000..5a773c8
--- /dev/null
+++ b/src/utils/permissionTester.ts
@@ -0,0 +1,26 @@
+import { CommandInteraction, ButtonInteraction, ModalSubmitInteraction, CacheType, PermissionFlagsBits } from 'discord.js';
+import { config } from '@/config';
+import { logger } from './logger';
+
+
+export namespace PermissionUtils {
+    /**
+     * Check if the user has the required permissions (PermissionsFlagsBits.Administrator bypasses all permissions)
+     * @param interaction The interaction to check
+     * @param permissionsToTests The permissions to check
+     * @param exact If the user needs all the permissions or just one
+     * @returns If the user has the required permissions
+    * */
+    export async function hasPermission(interaction: CommandInteraction|ButtonInteraction<CacheType>|ModalSubmitInteraction, permissionsToTests: bigint[], exact: boolean): Promise<boolean> {
+        if(config.OWNER_ID == interaction.user.id) return true
+        const member = await interaction.guild?.members.fetch(interaction.user.id)
+        if(!member) return false
+        if(member.permissions.has(PermissionFlagsBits.Administrator)) return true
+        if(permissionsToTests.length == 0) return false
+        if(exact) {
+            return permissionsToTests.every(permission => member.permissions.has(permission))
+        } else {
+            return permissionsToTests.some(permission => member.permissions.has(permission))
+        }
+    }
+}
\ No newline at end of file