diff --git a/functions/pdf.xml b/functions/pdf.xml
index bb6efc14fd..5e3a885f8c 100644
--- a/functions/pdf.xml
+++ b/functions/pdf.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.77 $ -->
+<!-- $Revision: 1.78 $ -->
  <reference id="ref.pdf">
   <title>PDF functions </title>
   <titleabbrev>PDF</titleabbrev>
@@ -2031,7 +2031,7 @@ pdf_setcolor($pdf, "both", "rgb", 1, 1, 1);
       <programlisting role="php">
 <![CDATA[
 // Set fill and stroke colors to white.
-pdf_setcolor($pdf, "cmyk", "rgb", 0, 0, 0, 1);
+pdf_setcolor($pdf, "both", "cmyk", 0, 0, 0, 1);
 ]]>
       </programlisting>
      </informalexample>