diff --git a/patch-control.sh b/patch-control.sh
index 3c4c27405108f24c382cf6a6de4436b38f2b14c6..34241ded185ec042066147e8f133d12e9417e508 100755
--- a/patch-control.sh
+++ b/patch-control.sh
@@ -203,7 +203,7 @@ done | zenity --progress \
 
 run_number=`get_run_number`
 
-ROOT_FILE=`printf "KM3NeT_%08d.root" ${run_number}`
+ROOT_FILE=`printf "KM3NeT_%08d_%08d.root" ${DETECTOR_ID} ${run_number}`
 ssh ${DAQ_USER}@${DAQ_SERVER} "[ -e ${ROOT_FILE} ]" && {
   log "A root file for the current run already exists. Run ${run_number} canceled."
   zenity --error --text="A root file for the current run already exists. Run ${run_number} canceled." --title="Error (at $(date))"