diff --git a/ch01_intro.adoc b/ch01_intro.adoc
index 736f545f..884e21c3 100644
--- a/ch01_intro.adoc
+++ b/ch01_intro.adoc
@@ -310,7 +310,7 @@ examples.
 
 [TIP]
 ====
-A recovery code is sometimes called a "mnemonic" or "mnemonic phrase,"
+A recovery code is ((("mnemonic phrases", see="recovery codes")))((("seed phrases", see="recovery codes")))sometimes called a "mnemonic" or "mnemonic phrase,"
 which implies you should memorize the phrase, but writing the phrase
 down on paper takes less work and tends to be more reliable than most
 people's memories.  Another alternative name is "seed phrase" because