diff --git a/tools/update_dev_dir.sh b/tools/update_dev_dir.sh
index 532ee91019..391ac3e9a1 100755
--- a/tools/update_dev_dir.sh
+++ b/tools/update_dev_dir.sh
@@ -2,7 +2,8 @@
 
 # Used to update http://openlayers.org/dev/ 
 
-svn up /osgeo/openlayers/docs/dev; 
+svn revert -R /osgeo/openlayers/docs/dev
+svn up /osgeo/openlayers/docs/dev
 
 # Get current 'Last Changed Rev'
 REV=`svn info /osgeo/openlayers/docs/dev/ | grep 'Revision' | awk '{print $2}'`