diff --git a/src/structures/MessageAttachment.js b/src/structures/MessageAttachment.js
index f5fb723b2..6041e9e76 100644
--- a/src/structures/MessageAttachment.js
+++ b/src/structures/MessageAttachment.js
@@ -79,6 +79,12 @@ class MessageAttachment {
      * @type {?number}
      */
     this.width = typeof data.width !== 'undefined' ? data.width : null;
+
+    /**
+     * This media type of this attachment
+     * @type {?string}
+     */
+    this.contentType = data.content_type ?? null;
   }
 
   /**
diff --git a/typings/index.d.ts b/typings/index.d.ts
index 121127bb5..cfec2e7ae 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -1061,6 +1061,7 @@ declare module 'discord.js' {
     constructor(attachment: BufferResolvable | Stream, name?: string, data?: object);
 
     public attachment: BufferResolvable | Stream;
+    public contentType: string | null;
     public height: number | null;
     public id: Snowflake;
     public name: string | null;