diff --git a/ChangeLog b/ChangeLog
index 2a85f962..34ab6736 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Oct 10 16:19:17 CEST 2003 Daniel Veillard <daniel@veillard.com>
+
+	* include/libxml/tree.h: make room in Doc, Element, Attributes
+	  for PSVI type informations.
+
 Fri Oct 10 16:08:02 CEST 2003 Daniel Veillard <daniel@veillard.com>
 
 	* HTMLparser.c c14n.c catalog.c error.c globals.c parser.c
diff --git a/include/libxml/tree.h b/include/libxml/tree.h
index e717cd2e..c65c1249 100644
--- a/include/libxml/tree.h
+++ b/include/libxml/tree.h
@@ -373,6 +373,7 @@ struct _xmlAttr {
     struct _xmlDoc  *doc;	/* the containing document */
     xmlNs           *ns;        /* pointer to the associated namespace */
     xmlAttributeType atype;     /* the attribute type if validating */
+    void            *psvi;	/* for type/PSVI informations */
 };
 
 /**
@@ -457,6 +458,7 @@ struct _xmlNode {
     xmlChar         *content;   /* the content */
     struct _xmlAttr *properties;/* properties list */
     xmlNs           *nsDef;     /* namespace definitions on this node */
+    void            *psvi;	/* for type/PSVI informations */
 };
 
 /**
@@ -510,6 +512,7 @@ struct _xmlDoc {
     int             charset;    /* encoding of the in-memory content
 				   actually an xmlCharEncoding */
     struct _xmlDict *dict;      /* dict used to allocate names or NULL */
+    void           *psvi;	/* for type/PSVI informations */
 };
 
 /**