diff --git a/server/chat-commands/moderation.ts b/server/chat-commands/moderation.ts
index 442d12f971..c2adaf0002 100644
--- a/server/chat-commands/moderation.ts
+++ b/server/chat-commands/moderation.ts
@@ -538,7 +538,7 @@ export const commands: Chat.ChatCommands = {
 	warn(target, room, user) {
 		if (!target) return this.parse('/help warn');
 		this.checkChat();
-		if (room?.settings.isPersonal && !user.can('warn' as any)) {
+		if (room?.settings.isPersonal && !user.can('warn' as any) && !room.parent) {
 			throw new Chat.ErrorMessage("Warning is unavailable in group chats.");
 		}
 		// If used in pms, staff, help tickets or battles, log the warn to the global modlog.