diff --git a/glossary.tex b/glossary.tex
index 5ab5bf115997bb5e6bc13f4158f533ef37093047..82f9ba9fa5009d2202785a720c7662a9083046e8 100644
--- a/glossary.tex
+++ b/glossary.tex
@@ -794,7 +794,7 @@ Set the darker die to `\dicef{6}' and roll the other.  If this roll fails, it fa
     are myriad tiny creatures, acting as one.
     They crawl over characters, and into gaps in armour.
 
-    Swarms can cover a number of \glspl{step} equal to their \glsentrytext{hp}-total, or bunch up together, with 3~\glsfmtplural{hp} per \glsentrytext{step}.
+    Swarms can cover a number of \glspl{step} equal to their \glsfmtplural{hp}, or bunch up together, with 3~\glsfmtplural{hp} per \glsentrytext{step}.
 
     Attacking swarms is easy when there are so many targets.
     The \glsentrytext{tn} to attack always reduces by 1 per \glsentrytext{hp} in the swarm, so when a swarm is listed with `{\scshape Att 12 - 8 \glsentrytext{hp}}', the \glsentrytext{tn} would be only 4; but if the swarm had only 1~\glsentrytext{hp} left, hitting it would require a roll at \glsentrytext{tn}~11.