diff --git a/libs/sofia-sip/.update b/libs/sofia-sip/.update
index 16d2bbd74e..b1e582ebce 100644
--- a/libs/sofia-sip/.update
+++ b/libs/sofia-sip/.update
@@ -1 +1 @@
-Sat May 24 23:25:00 EDT 2008
+Sun May 25 09:50:22 EDT 2008
diff --git a/libs/sofia-sip/libsofia-sip-ua/nua/nua_dialog.h b/libs/sofia-sip/libsofia-sip-ua/nua/nua_dialog.h
index a1c6c9488f..ed9ff66707 100644
--- a/libs/sofia-sip/libsofia-sip-ua/nua/nua_dialog.h
+++ b/libs/sofia-sip/libsofia-sip-ua/nua/nua_dialog.h
@@ -501,6 +501,9 @@ nua_dialog_usage_t *nua_dialog_usage_public(void const *p)
 #define nua_dialog_usage_public(p) ((p) ? (nua_dialog_usage_t*)(p) - 1 : NULL)
 #endif
 
+#define NUA_DIALOG_USAGE_PRIVATE(du) ((void *)((du) + 1))
+#define NUA_DIALOG_USAGE_PUBLIC(pu) ((void *)((nua_dialog_usage_t *)(pu) - 1))
+
 /* ---------------------------------------------------------------------- */
 
 int nua_client_create(nua_owner_t *owner,