diff --git a/docs/method-type-issubtypeof.md b/docs/method-type-issubtypeof.md
index 4bc5180..a81b9f7 100644
--- a/docs/method-type-issubtypeof.md
+++ b/docs/method-type-issubtypeof.md
@@ -105,6 +105,8 @@ The [`type`](./user-defined-type-functions.md#type-instance) will gain a new met
 type:issubtypeof(arg: type): boolean
 ```
 
+This method will return a boolean indicating if the type is a subtype of `arg`. 
+
 ## Drawbacks
 
 Adds another method to the type userdata in User-Defined type functions.