diff --git a/fdi/fdi.dtd b/fdi/fdi.dtd
index 5484ccb..bb3e3e1 100644
--- a/fdi/fdi.dtd
+++ b/fdi/fdi.dtd
@@ -9,7 +9,7 @@

 <!ELEMENT device (match|merge)*  >

-<!ELEMENT match (match|merge|prepend|append|remove)* >
+<!ELEMENT match (match|merge|prepend|append|remove|spawn)* >
 <!ATTLIST match
     key              CDATA #REQUIRED
     string           CDATA #IMPLIED
@@ -50,3 +50,8 @@
     key    CDATA #REQUIRED
     type   (strlist) #REQUIRED
 >
+
+<!ELEMENT spawn (#PCDATA) >
+<!ATTLIST spawn
+    udi    CDATA #REQUIRED
+>