diff --git a/nips/01.md b/nips/01.md
index 2c51985..2d4511d 100644
--- a/nips/01.md
+++ b/nips/01.md
@@ -12,7 +12,7 @@ This NIP defines the basic protocol that should be implemented by everybody. New
 
 Each user has a keypair. Signatures, public key and encodings are done according to the [Schnorr signatures standard for the curve `secp256k1`](https://bips.xyz/340).
 
-The single object type that exists is the `event`, which has the following format on the wire:
+The only object type that exists is the `event`, which has the following format on the wire:
 
 ```
 {