diff --git a/src/client/websocket/handlers/GUILD_MEMBERS_CHUNK.js b/src/client/websocket/handlers/GUILD_MEMBERS_CHUNK.js
index f9ac7f9..dfc1aac 100644
--- a/src/client/websocket/handlers/GUILD_MEMBERS_CHUNK.js
+++ b/src/client/websocket/handlers/GUILD_MEMBERS_CHUNK.js
@@ -19,6 +19,8 @@ module.exports = (client, { d: data }) => {
    * @property {number} index Index of the received chunk
    * @property {number} count Number of chunks the client should receive
    * @property {?string} nonce Nonce for this chunk
+   * @property {Array<*>} notFound An array of whatever could not be found
+   * when using {@link Opcodes.REQUEST_GUILD_MEMBERS}
    */
 
   /**
@@ -32,5 +34,6 @@ module.exports = (client, { d: data }) => {
     count: data.chunk_count,
     index: data.chunk_index,
     nonce: data.nonce,
+    notFound: data.not_found,
   });
 };
diff --git a/typings/index.d.ts b/typings/index.d.ts
index 51c8450..9f10cfa 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -4561,7 +4561,7 @@ export interface ClientEvents extends BaseClientEvents {
   guildMembersChunk: [
     members: Collection<Snowflake, GuildMember>,
     guild: Guild,
-    data: { count: number; index: number; nonce: string | undefined },
+    data: { count: number; index: number; nonce: string | undefined; notFound: unknown[] },
   ];
   guildMemberUpdate: [oldMember: GuildMember | PartialGuildMember, newMember: GuildMember];
   guildMemberListUpdate: [