diff --git a/cms/patatrack/ci-scripts/build_2.sh b/cms/patatrack/ci-scripts/build_2.sh
index 2be45f6b3169f386d64babc98036f59547b6cee8..8d3d64f84fc56df5869246e0316c623b72ad8db7 100755
--- a/cms/patatrack/ci-scripts/build_2.sh
+++ b/cms/patatrack/ci-scripts/build_2.sh
@@ -29,10 +29,9 @@ for file in $(ls /bmk/data); do
     ln -sf /bmk/data/$file /bmk/./cms-patatrack/data/$file
 done
 
-cvmfs_checksum=$(cat /tmp/cvmfs_checksum) 
-bmkdata_checksum=$(cat /tmp/bmkdata_checksum) 
-bmk_checksum=$(cat /tmp/bmk_checksum) 
-rm /tmp/cvmfs_checksum /tmp/bmkdata_checksum /tmp/bmk_checksum 
+cvmfs_checksum=$(cat /tmp/cvmfs_checksum || echo "NotAvailable") 
+bmkdata_checksum=$(cat /tmp/bmkdata_checksum || echo "NotAvailable") 
+bmk_checksum=$(cat /tmp/bmk_checksum || echo "NotAvailable") 
 echo '{"version":"v1.3","description":"CMS RECO of ttbar events, based on CMSSW_10_2_9","cvmfs_checksum":"'$cvmfs_checksum'","bmkdata_checksum":"'$bmkdata_checksum'","bmk_checksum":"'$bmk_checksum'"}' >/bmk/./cms-patatrack/version.json #FIXME
 
 # Add user 'bmkuser' to benchmarks as a non-root user (BMK-166 and BMK-167)