diff --git a/xml/System.Xml.Xsl/XsltArgumentList.xml b/xml/System.Xml.Xsl/XsltArgumentList.xml
index 7f1c7fae63f..0581a267cc3 100644
--- a/xml/System.Xml.Xsl/XsltArgumentList.xml
+++ b/xml/System.Xml.Xsl/XsltArgumentList.xml
@@ -258,7 +258,7 @@
   
  The <paramref name="name" /> is not a valid name according to the W3C XML specification.  
   
- The <paramref name="namespaceUri" /> already has a parameter associated with it.</exception>
+ The <paramref name="namespaceUri" /> already has a parameter called <paramref name="name" /> associated with it.</exception>
         <related type="Article" href="/dotnet/standard/data/xml/xslt-extension-objects">XSLT Extension Objects</related>
         <related type="Article" href="/dotnet/standard/data/xml/xslt-parameters">XSLT Parameters</related>
         <related type="Article" href="/dotnet/standard/data/xml/using-the-xslcompiledtransform-class">Using the XslCompiledTransform Class</related>