diff --git a/reference/pthreads/collectable/isgarbage.xml b/reference/pthreads/collectable/isgarbage.xml
index ea72ffa352..e41a652ee7 100644
--- a/reference/pthreads/collectable/isgarbage.xml
+++ b/reference/pthreads/collectable/isgarbage.xml
@@ -4,7 +4,7 @@
 <refentry xml:id="collectable.isgarbage" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>Collectable::isGarbage</refname>
-  <refpurpose>Can be called in Pool::collect to determine if this object is garbage</refpurpose>
+  <refpurpose>Determine whether an object has been marked as garbage</refpurpose>
  </refnamediv>
 
  <refsect1 role="description">
diff --git a/reference/pthreads/collectable/setgarbage.xml b/reference/pthreads/collectable/setgarbage.xml
index fc529c606b..2dd7066a15 100644
--- a/reference/pthreads/collectable/setgarbage.xml
+++ b/reference/pthreads/collectable/setgarbage.xml
@@ -4,7 +4,7 @@
 <refentry xml:id="collectable.setgarbage" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>Collectable::setGarbage</refname>
-  <refpurpose>Should be called once per object when the object is finished being executed or referenced</refpurpose>
+  <refpurpose>Mark an object as garbage</refpurpose>
  </refnamediv>
 
  <refsect1 role="description">