diff --git a/v2/roll.sh b/v2/roll.sh
old mode 100644
new mode 100755
index 73fbf150b..0b3b16610
--- a/v2/roll.sh
+++ b/v2/roll.sh
@@ -46,6 +46,8 @@ perl -pi -e 's%../../../doc/html/bbv2.installation.html%doc/html/bbv2.installati
 find . -name CVS | xargs rm -rf
 rm roll.sh
 chmod a+x jam_src/build.bat
+revision=`svnversion .`
+echo 'SVN Revision $revision' >> timestamp.txt
 date >> timestamp.txt
 cd .. && zip -r boost-build.zip boost-build && tar --bzip2 -cf boost-build.tar.bz2 boost-build
 cd boost-build