Index: tp/Texinfo/Convert/DocBook.pm
===================================================================
--- tp/Texinfo/Convert/DocBook.pm	(revision 5920)
+++ tp/Texinfo/Convert/DocBook.pm	(working copy)
@@ -640,6 +640,12 @@
           if ($root->{'extra'} and $root->{'extra'}->{'associated_node'}) {
             $attribute .= " id=\"$root->{'extra'}->{'associated_node'}->{'extra'}->{'normalized'}\"";
           }
+          elsif ($root->{'cmdname'} eq 'part' && $root->{'args'} and $root->{'args'}->[0]) {
+            my ($arg, $end_line)
+              = $self->_convert_argument_and_end_line($root->{'args'}->[0]);
+            $arg = Texinfo::Convert::NodeNameNormalization::_unicode_to_protected($arg);
+            $attribute .= " id=\"$arg\"";
+          }
           $result .= "<$command${attribute}>\n";
           if ($root->{'args'} and $root->{'args'}->[0]) {
             my ($arg, $end_line)