diff --git a/discord/app_commands/transformers.py b/discord/app_commands/transformers.py
index c576c95ba..bfe2ee8b8 100644
--- a/discord/app_commands/transformers.py
+++ b/discord/app_commands/transformers.py
@@ -720,6 +720,7 @@ BUILT_IN_TRANSFORMERS: Dict[Any, Transformer] = {
     VoiceChannel: BaseChannelTransformer(VoiceChannel),
     TextChannel: BaseChannelTransformer(TextChannel),
     CategoryChannel: BaseChannelTransformer(CategoryChannel),
+    ForumChannel: BaseChannelTransformer(ForumChannel),
     Attachment: IdentityTransformer(AppCommandOptionType.attachment),
 }