diff --git a/book/source/08-signing_components.md b/book/source/08-signing_components.md
index 041ef20..adc1f4f 100644
--- a/book/source/08-signing_components.md
+++ b/book/source/08-signing_components.md
@@ -40,7 +40,7 @@ No [key flag](https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-
 
 ### Third-party signatures
 
-Third-party signatures are pivotal in OpenPGP for decentralized authentication, forming the basis of the Web of Trust. They encode authentication-related statements about certificates and linked identities, establishing trustworthiness in identity claims.
+Third-party signatures are pivotal in OpenPGP for decentralized authentication, forming the basis of the Web of Trust. They encode authentication-related statements about certificates and linked identities, establishing trustworthiness of identity claims.
 
 Third-party signatures are used to make specific statements: