diff --git a/src/commands/additem.ts b/src/commands/additem.ts
index 1760b68..b8f35a5 100644
--- a/src/commands/additem.ts
+++ b/src/commands/additem.ts
@@ -17,12 +17,12 @@ export default class AddItem extends Command {
         const embed = new RichEmbed();
         embed.setTitle('Whois Data Codes');
         embed.addField('Languages', '**Assembly Language:** lang-asm\n**C/C++:** lang-cfam\n**C#:** lang-csharp\n**Go:** lang-go\n**Java:** lang-java\n**JavaScript:** lang-js\n**Kotlin:** lang-kt\n**Python:** lang-py\n**Ruby:** lang-rb\n**Rust:** lang-rs\n**Swift:** lang-swift\n**TypeScript:** lang-ts');
-        embed.addField('Operating Systems', '**Arch:** os-arch\n**Debian:** os-deb\n**Fedora:** os-fedora\n**macOS:** os-mdarwin\n**Manjaro:** os-manjaro\n**RedHat:** os-redhat\n**Ubuntu:** os-ubuntu\n**Windows:** os-win');
+        embed.addField('Operating Systems', '**Arch:** os-arch\n**Debian:** os-deb\n**CentOS:** os-cent\n**Fedora:** os-fedora\n**macOS:** os-mdarwin\n**Manjaro:** os-manjaro\n**RedHat:** os-redhat\n**Ubuntu:** os-ubuntu\n**Windows:** os-win');
         embed.setFooter(this.client.user.username, this.client.user.avatarURL);
         embed.setTimestamp();
         return message.channel.createMessage({ embed });
       }
-      if (args[0].split('-')[0] === 'os' && ['arch', 'deb', 'fedora', 'manjaro', 'mdarwin', 'redhat', 'ubuntu', 'win'].includes(args[0].split('-')[1])) {
+      if (args[0].split('-')[0] === 'os' && ['arch', 'deb', 'cent', 'fedora', 'manjaro', 'mdarwin', 'redhat', 'ubuntu', 'win'].includes(args[0].split('-')[1])) {
         const account = await this.client.db.member.findOne({ userID: message.member.id });
         if (!account) {
           // eslint-disable-next-line new-cap
diff --git a/src/commands/delitem.ts b/src/commands/delitem.ts
index 9ab5e53..ade9cb3 100644
--- a/src/commands/delitem.ts
+++ b/src/commands/delitem.ts
@@ -17,12 +17,12 @@ export default class DelItem extends Command {
         const embed = new RichEmbed();
         embed.setTitle('Whois Data Codes');
         embed.addField('Languages', '**Assembly Language:** lang-asm\n**C/C++:** lang-cfam\n**C#:** lang-csharp\n**Go:** lang-go\n**Java:** lang-java\n**JavaScript:** lang-js\n**Kotlin:** lang-kt\n**Python:** lang-py\n**Ruby:** lang-rb\n**Rust:** lang-rs\n**Swift:** lang-swift\n**TypeScript:** lang-ts');
-        embed.addField('Operating Systems', '**Arch:** os-arch\n**Debian:** os-deb\n**Fedora:** os-fedora\n**macOS:** os-mdarwin\n**Manjaro:** os-manjaro\n**RedHat:** os-redhat\n**Ubuntu:** os-ubuntu\n**Windows:** os-win');
+        embed.addField('Operating Systems', '**Arch:** os-arch\n**Debian:** os-deb\n**CentOS:** os-cent\n**Fedora:** os-fedora\n**macOS:** os-mdarwin\n**Manjaro:** os-manjaro\n**RedHat:** os-redhat\n**Ubuntu:** os-ubuntu\n**Windows:** os-win');
         embed.setFooter(this.client.user.username, this.client.user.avatarURL);
         embed.setTimestamp();
         return message.channel.createMessage({ embed });
       }
-      if (args[0].split('-')[0] === 'os' && ['arch', 'deb', 'fedora', 'manjaro', 'mdarwin', 'redhat', 'ubuntu', 'win'].includes(args[0].split('-')[1])) {
+      if (args[0].split('-')[0] === 'os' && ['arch', 'deb', 'cent', 'fedora', 'manjaro', 'mdarwin', 'redhat', 'ubuntu', 'win'].includes(args[0].split('-')[1])) {
         const account = await this.client.db.member.findOne({ userID: message.member.id });
         if (!account || !account?.additional.operatingSystems || account?.additional.operatingSystems.length < 1) {
           return message.channel.createMessage(`***${this.client.util.emojis.ERROR} You don't have any operating systems to remove.***`);
diff --git a/src/commands/whois.ts b/src/commands/whois.ts
index 0746f0b..1ed7329 100644
--- a/src/commands/whois.ts
+++ b/src/commands/whois.ts
@@ -152,6 +152,9 @@ export default class Whois extends Command {
             case 'deb':
               operatingSystems.push('<:debian:707695042617147589> Debian');
               break;
+            case 'cent':
+              operatingSystems.push('<:centos:707702165816213525> CentOS');
+              break;
             case 'fedora':
               operatingSystems.push('<:fedora:707695073151680543> Fedora');
               break;