diff --git a/book/source/signing_data.md b/book/source/signing_data.md
index 6ae7953..d5eafe4 100644
--- a/book/source/signing_data.md
+++ b/book/source/signing_data.md
@@ -26,7 +26,7 @@ Note that {term}`data signatures<Data Signature>` are distinct from [](/signing_
 
 {term}`Data signatures<Data Signature>` are generated by {term}`hashing<Hash Digest>` the message content along with the {term}`metadata` in the {term}`OpenPGP signature packet`, and calculating a {term}`cryptographic signature` over that {term}`hash<Hash Digest>`. The resulting {term}`cryptographic signature` is stored in the {term}`signature packet<OpenPGP Signature Packet>`.
 
-{term}`Data signature packets<Data Signature Packet>` manifest in three distinct forms, which will be detailed in the subsequent section.
+{term}`Data signatures<Data Signature>` manifest in three distinct forms, which will be detailed in the subsequent section.
 
 (forms-of-data-signatures)=
 ## Forms of OpenPGP data signatures