diff --git a/UPDATING b/UPDATING
index 7d3f26053ca2..abcaeb398e6a 100644
--- a/UPDATING
+++ b/UPDATING
@@ -1,4 +1,4 @@
-$NetBSD: UPDATING,v 1.211 2010/05/22 09:11:04 tnozaki Exp $
+$NetBSD: UPDATING,v 1.212 2010/05/22 11:10:59 mrg Exp $
 
 This file (UPDATING) is intended to be a brief reference to recent
 changes that might cause problems in the build process, and a guide for
@@ -16,6 +16,11 @@ See also: BUILDING, build.sh, Makefile.
 Recent changes:
 ^^^^^^^^^^^^^^^
 
+20100522:
+	Recent Xorg updates in xsrc/external/mit/ will cause various build
+	problems.  Delete your entire DESTDIR and OBJDIR if you have any
+	build problems with xsrc.
+
 20100522:
 	private section of <ctype.h> was splitted, and now mklocale(1)
 	include ctype_local.h, so you have to make cleandir tools/mklocale.
@@ -24,7 +29,6 @@ Recent changes:
 	The location of the xkb compiled descriptions has changed. Please
 	remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR.
 
-
 20100222:
 	The shared objects file extension has been changed from .so to
 	.pico, in order to avoid conflicts with shared libraries names