diff --git a/ch05_wallets.adoc b/ch05_wallets.adoc
index d73b84e1..e1648a03 100644
--- a/ch05_wallets.adoc
+++ b/ch05_wallets.adoc
@@ -1074,7 +1074,7 @@ HD wallets ((("key generation", "HD (hierarchical deterministic)", "private chil
 function to derive child keys from parent keys.
 
 The child key derivation functions are based on a one-way hash function
-that combines:
+that [.keep-together]#combines:#
 
 * A parent private or public key (uncompressed key)
 * A seed called a chain code (256 bits)