diff --git a/reference/apc/apciterator/construct.xml b/reference/apc/apciterator/construct.xml
index e4b7d413da..76326f0630 100644
--- a/reference/apc/apciterator/construct.xml
+++ b/reference/apc/apciterator/construct.xml
@@ -91,7 +91,7 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-foreach (new APCIterator('/^counter\./') as $counter) {
+foreach (new APCIterator('user', '/^counter\./') as $counter) {
     echo "$counter[key]: $counter[value]\n";
     apc_dec($counter['key'], $counter['value']);
 }