diff --git a/VPS/restic-backup.sh b/VPS/restic-backup.sh
index 6557dc1..44c969c 100755
--- a/VPS/restic-backup.sh
+++ b/VPS/restic-backup.sh
@@ -76,7 +76,7 @@ fi
 rm -rf temp/*
 
 if [ -z "$error_message" ]; then
-	restic forget --verbose --prune --tag "$1" --keep-last "$backup_count" > forget_output.log 2>&1
+	restic forget --verbose --prune --group-by tag --tag "$1" --keep-last "$backup_count" > forget_output.log 2>&1
 fi
 if [ $? -ne 0 ]; then
 	error_message="Restic forget failed ! See log bellow.\n\n"