diff --git a/openrpc.yaml b/openrpc.yaml
index 452d187..8a771fc 100644
--- a/openrpc.yaml
+++ b/openrpc.yaml
@@ -247,7 +247,7 @@ methods:
           $ref: '#/components/schemas/address'
     result:
       name: Signature
-      description: A hex-encoded 129-byte array starting with `0x`.
+      description: A hex-encoded 65-byte array starting with `0x`.
       schema:
         $ref: '#/components/schemas/bytes'
     examples: