diff --git a/book/source/08-signing_components.md b/book/source/08-signing_components.md
index c7b6a49..15874a2 100644
--- a/book/source/08-signing_components.md
+++ b/book/source/08-signing_components.md
@@ -227,7 +227,7 @@ When a signer issues a certifying signature on an identity, it indicates a verif
 
 For example, Alice can vouch that Bob's User ID `Bob Baker <bob@example.com>` is legitimately linked with his certificate `BB28 9FB7 A68D BFA8 C384 CCCD E205 8E02  D9C6 CD2F 3C7C 56AE 7FB5 3D97 1170 BA83`, by creating a certification signature. Bob can then distribute Alice's certifying signature as part of his certificate.
 
-Other users may or may not decide to rely on Alice's statement when questioning the authenticity of Bob's certificate.
+Other users may or may not decide to rely on Alice's statement to determine the authenticity of Bob's certificate.
 
 ### Trust signatures: delegating authentication