diff --git a/glossary.asciidoc b/glossary.asciidoc
index 730e1a3..3342182 100644
--- a/glossary.asciidoc
+++ b/glossary.asciidoc
@@ -65,7 +65,7 @@ capacity::
     The capacity of a payment channel is equivalent to the amount of bitcoin provided by the funding transaction.
     Because the funding transaction is publicly visible on the blockchain, and the channel is announced via the gossip protocol, the capacity is public information.
     It does not reveal any information about how much bitcoin each of the channel partners owns in the channel, i.e., the balance.
-    A high capacity does not guarantee that the channel can be used for routing in both directions.
+    A high capacity does not guarantee that the channel can be used for routing in both pass:[<span class="keep-together">directions</span>].
 
 c-lightning::
     Implementation of the LN Protocol by the Victoria-based company https://blockstream.com[Blockstream]. It is written in C. Source code is at https://github.com/ElementsProject/lightning[GitHub].