diff --git a/journal-of-the-royal-society-of-western-australia.csl b/journal-of-the-royal-society-of-western-australia.csl
index 6b970528db8..4bfd035258f 100644
--- a/journal-of-the-royal-society-of-western-australia.csl
+++ b/journal-of-the-royal-society-of-western-australia.csl
@@ -163,16 +163,13 @@
   <macro name="container-collection-event-volume">
     <choose>
       <if type="paper-conference">
-        <group delimiter=", ">
-          <group delimiter=". ">
-            <group delimiter=" &#8211; ">
-              <text variable="container-title" font-style="italic"/>
-              <text variable="collection-title"/>
-              <text variable="event"/>
-            </group>
-            <text variable="number"/>
+        <group delimiter=". ">
+          <group delimiter=" &#8211; ">
+            <text variable="container-title" font-style="italic"/>
+            <text variable="collection-title"/>
+            <text variable="event"/>
           </group>
-          <text macro="number-of-pages"/>
+          <text variable="number"/>
         </group>
       </if>
       <else>
@@ -252,7 +249,6 @@
                   <group delimiter=", ">
                     <text variable="genre"/>
                     <text macro="publisher"/>
-                    <text macro="number-of-pages"/>
                   </group>
                   <text variable="status" prefix="[" suffix="]"/>
                 </group>