diff --git a/doctrine-mapping.xsd b/doctrine-mapping.xsd
index 96f155a60..937d5a4ec 100644
--- a/doctrine-mapping.xsd
+++ b/doctrine-mapping.xsd
@@ -161,6 +161,7 @@
       <xs:enumeration value="SEQUENCE"/> 
       <xs:enumeration value="IDENTITY"/> 
       <xs:enumeration value="AUTO"/> 
+      <xs:enumeration value="UUID"/> 
     </xs:restriction> 
   </xs:simpleType>