diff --git a/reference/objaggregation/functions/aggregate-properties-by-regexp.xml b/reference/objaggregation/functions/aggregate-properties-by-regexp.xml
index 4354c10fa9..52128dc9e1 100644
--- a/reference/objaggregation/functions/aggregate-properties-by-regexp.xml
+++ b/reference/objaggregation/functions/aggregate-properties-by-regexp.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
  <refentry id="function.aggregate-properties-by-regexp">
    <refnamediv>
     <refname>aggregate_properties_by_regexp</refname>
@@ -19,8 +19,8 @@
      </methodsynopsis>
     <para>
      Aggregates properties from a class to
-     an existing object using a regular expresion to match their names. 
-     The optional paramater
+     an existing object using a regular expression to match their names. 
+     The optional parameter
      <parameter>exclude</parameter> is used to decide whether the regular
      expression will select
      the names of class properties to include in the aggregation (i.e.