diff --git a/book/source/17-zoom_certificates.md b/book/source/17-zoom_certificates.md
index 72d3eb6..6ac2d63 100644
--- a/book/source/17-zoom_certificates.md
+++ b/book/source/17-zoom_certificates.md
@@ -314,7 +314,7 @@ The subpacket details are as follows:
   - Type: `33`
   - Critical: `No`
   - Value: `aaa18cbb254685c58358320563fd37b67f3300f9fb0ec457378cd29f102698b3`
-  - Notes: The fingerprint identifoes the component key that issued the signature in this packet. In this instance, the value is the primary key fingerprint of the certificate we're looking at.
+  - Notes: The fingerprint identifies the component key that issued the signature in this packet. In this instance, the value is the primary key fingerprint of the certificate we're looking at.
 
 The next part of this packet contains unhashed subpacket data: