diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index 646b7813a..646f9051a 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -552,7 +552,7 @@ export abstract class Channel extends Base {
   public isThread(): this is ThreadChannel;
   public isStage(): this is StageChannel;
   public isTextBased(): this is TextBasedChannel;
-  public isDMBased(): this is PartialGroupDMChannel | DMChannel;
+  public isDMBased(): this is PartialGroupDMChannel | DMChannel | PartialDMChannel;
   public isVoiceBased(): this is VoiceBasedChannel;
   public toString(): ChannelMention;
 }
@@ -4929,6 +4929,7 @@ export type AnyChannel =
   | CategoryChannel
   | DMChannel
   | PartialDMChannel
+  | PartialGroupDMChannel
   | NewsChannel
   | StageChannel
   | StoreChannel