diff --git a/07.md b/07.md
index 0bd3de6..20c671a 100644
--- a/07.md
+++ b/07.md
@@ -12,7 +12,7 @@ That object must define the following methods:
 
 ```
 async window.nostr.getPublicKey(): string // returns a public key as hex
-async window.nostr.signEvent(event: Event): Event // takes an event object and returns it with the `sig`
+async window.nostr.signEvent(event: Event): Event // takes an event object, adds `id`, `pubkey` and `sig` and returns it
 ```
 
 Aside from these two basic above, the following functions can also be implemented optionally: