--- neighbor_list.xml.in.orig
+++ neighbor_list.xml.in
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
 <?xml-stylesheet type="text/xsl" href="neighbor.xsl" ?>
 <!DOCTYPE neighbor_list
-SYSTEM "@VARDATADIR@/ndpmon/neighbor_list.dtd">
+SYSTEM "@prefix@/share/ndpmon/neighbor_list.dtd">
 <neighbor_list>
 </neighbor_list>