diff --git a/ch08_signatures.adoc b/ch08_signatures.adoc
index ceccd9e1..68870c21 100644
--- a/ch08_signatures.adoc
+++ b/ch08_signatures.adoc
@@ -1,7 +1,7 @@
 [[c_signatures]]
 == Digital Signatures
 
-Two ((("digital signatures", "schnorr signature algorithm")))((("schnorr signature algorithm")))((("digital signatures", "ECDSA")))((("ECDSA (Elliptic Curve Digital Signature Algorithm)")))signature algorithms are currently
+Two ((("digital signatures", "schnorr signature algorithm")))((("schnorr signature algorithm")))((("digital signatures", "ECDSA")))((("ECDSA (Elliptic Curve Digital Signature Algorithm)")))((("transactions", "signatures", see="digital signatures")))signature algorithms are currently
 used in Bitcoin, the _schnorr signature algorithm_ and the _Elliptic
 Curve Digital Signature Algorithm_ (_ECDSA_).
 These algorithms are used for digital signatures based on elliptic