diff --git a/reference/pdo_sqlite/PDO/sqliteCreateAggregate.xml b/reference/pdo_sqlite/PDO/sqliteCreateAggregate.xml
index 91b7d45532..4cf521a1c2 100644
--- a/reference/pdo_sqlite/PDO/sqliteCreateAggregate.xml
+++ b/reference/pdo_sqlite/PDO/sqliteCreateAggregate.xml
@@ -53,7 +53,7 @@
       <para>
        This function need to be defined as:
        <methodsynopsis>
-        <methodname><replaceable>step</replaceable></methodname>
+        <type>mixed</type><methodname><replaceable>step</replaceable></methodname>
         <methodparam><type>mixed</type><parameter>context</parameter></methodparam>
         <methodparam><type>int</type><parameter>rownumber</parameter></methodparam>
         <methodparam><type>mixed</type><parameter>value1</parameter></methodparam>
@@ -70,6 +70,11 @@
       <para>
        <varname>rownumber</varname> will hold the current row number.
       </para>
+      <para>
+       The return value of this function will be used as the
+       <parameter>context</parameter> argument in the next call of the step or
+       finalize functions.
+      </para>
      </listitem>
     </varlistentry>
     <varlistentry>
@@ -86,7 +91,7 @@
       <para>
        This function need to be defined as:
        <methodsynopsis>
-        <methodname><replaceable>fini</replaceable></methodname>
+        <type>mixed</type><methodname><replaceable>fini</replaceable></methodname>
         <methodparam><type>mixed</type><parameter>context</parameter></methodparam>
         <methodparam><type>int</type><parameter>rownumber</parameter></methodparam>
        </methodsynopsis>