diff --git a/chapters/18.xml b/chapters/18.xml
index da4d50812..99a51cf54 100644
--- a/chapters/18.xml
+++ b/chapters/18.xml
@@ -2897,7 +2897,7 @@
 
       <interlinear-gloss>
         <jbo>le nu lo sicni cu sedja'o cu pimucu'o</jbo>
-        <gloss>The event of-a coin - being-a-head-displayer - has-probability-.5.</gloss>
+        <gloss>The event-of a coin - being-a-head-displayer - has-probability-.5.</gloss>
 
       </interlinear-gloss>
     </example>