diff --git a/docs/guides/int_framework/intro.md b/docs/guides/int_framework/intro.md
index c019b1424..54e9086a1 100644
--- a/docs/guides/int_framework/intro.md
+++ b/docs/guides/int_framework/intro.md
@@ -86,6 +86,7 @@ By default, your methods can feature the following parameter types:
 - Implementations of [IChannel]
 - Implementations of [IRole]
 - Implementations of [IMentionable]
+- Implementations of [IAttachment]
 - `string`
 - `float`, `double`, `decimal`
 - `bool`