diff --git a/book/source/08-signing_components.md b/book/source/08-signing_components.md
index 50e3083..0d59de1 100644
--- a/book/source/08-signing_components.md
+++ b/book/source/08-signing_components.md
@@ -127,7 +127,7 @@ The back signature signifies the mutuality of the subkey's association with the
 
 Self-signatures also play a vital role in binding identity components, such as User IDs or User Attributes, to an OpenPGP certificate.
 
-Take for instance, the User ID `Alice Adams <alice@example.org>`. To link this User ID to her OpenPGP certificate (e.g., `AAA1 8CBB 2546 85C5 8358 3205 63FD 37B6  7F33 00F9 FB0E C457 378C D29F 1026 98B3`), Alice would use a cryptographic signature.
+Take for instance, the User ID `Alice Adams <alice@example.org>`. To link this User ID to her OpenPGP certificate (`AAA1 8CBB 2546 85C5 8358 3205 63FD 37B6  7F33 00F9 FB0E C457 378C D29F 1026 98B3`), Alice would use a cryptographic signature.
 
 There are four types of *certifying self-signature*. The most commonly used type for binding User IDs is the [positive certification](https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-10.html#sigtype-positive-cert) (type ID `0x13`). Alternatively, types `0x10`, `0x11` or `0x12` might be used. This binding signature must be issued by the primary key.