--- a/tools/Master.cpp	Thu Jul 10 09:36:47 2008 +0000
+++ b/tools/Master.cpp	Thu Jul 10 09:39:38 2008 +0000
@@ -1717,7 +1717,7 @@
 
             cout
                 << "          <" << pdoType
-                << " Sm=\"" << i << "\" Fixed=\"1\">" << endl
+                << " Sm=\"" << i << "\" Fixed=\"1\" Mandatory=\"1\">" << endl
                 << "            <Index>#x"
                 << hex << setfill('0') << setw(4) << pdo.index
                 << "</Index>" << endl