diff --git a/index.d.ts b/index.d.ts
index 9aedba5ee..799bbabf8 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -189,7 +189,7 @@ declare namespace Eris {
   // User
   type ApplicationCommandOptionsUser = ApplicationCommandOption<Constants["ApplicationCommandOptionTypes"]["USER"]>;
   // Channel
-  type ApplicationCommandOptionsChannel = ApplicationCommandOption<Constants["ApplicationCommandOptionTypes"]["CHANNEL"]> & { channel_types?: ChannelTypes };
+  type ApplicationCommandOptionsChannel = ApplicationCommandOption<Constants["ApplicationCommandOptionTypes"]["CHANNEL"]> & { channel_types?: ChannelTypes[] };
   // Role
   type ApplicationCommandOptionsRole = ApplicationCommandOption<Constants["ApplicationCommandOptionTypes"]["ROLE"]>;
   // Mentionable