diff --git a/src/structures/member.ts b/src/structures/member.ts
index 9f26e5b91..d29a2a61a 100644
--- a/src/structures/member.ts
+++ b/src/structures/member.ts
@@ -134,7 +134,7 @@ export interface Member {
   /** Get the nickname or the username if no nickname */
   name(guildID: string): string;
   /** Get the nickname */
-  guildMember(guildID: string): GuildMember;
+  guildMember(guildID: string): GuildMember | undefined;
   /** Send a direct message to the user is possible */
   sendDM(content: string | MessageContent): Promise<any>;
   /** Kick the member from a guild */