diff --git a/zebra-chain/src/note_encryption.rs b/zebra-chain/src/note_encryption.rs
index 8b190a361..af4f924a6 100644
--- a/zebra-chain/src/note_encryption.rs
+++ b/zebra-chain/src/note_encryption.rs
@@ -14,7 +14,7 @@ mod sprout;
 /// The usage of the memo field is by agreement between the sender and
 /// recipient of the note.
 ///
-/// [ps]: https://zips.z.cash/protocol/protocol.pdf#spendencoding
+/// [ps]: https://zips.z.cash/protocol/protocol.pdf#notept
 #[derive(Clone, Copy)]
 pub struct Memo([u8; 512]);