diff --git a/ch07_authorization-authentication.adoc b/ch07_authorization-authentication.adoc
index cb3fb77e..091bd7e5 100644
--- a/ch07_authorization-authentication.adoc
+++ b/ch07_authorization-authentication.adoc
@@ -314,7 +314,7 @@ image::images/mbc3_0704.png["Tx_Script_P2PubKeyHash_2"]
 
 Multisignature scripts((("scripts", "multisignature", id="script-multisignature")))((("multisignature scripts", id="multi-script"))) set a condition where _k_ public keys
 are recorded in the script and at least _t_ of those must provide
-signatures to spend the funds, called t-of-k.
+signatures to spend the funds, called _t_-of-_k_.
 For example, a 2-of-3 multisignature is one
 where three public keys are listed as potential signers and at least two
 of those must be used to create signatures for a valid transaction to