diff --git a/nixos/common/software/cli/scripts/btrfs-backup.sh b/nixos/common/software/cli/scripts/btrfs-backup.sh
index 936ce1e3..33a4dcfd 100755
--- a/nixos/common/software/cli/scripts/btrfs-backup.sh
+++ b/nixos/common/software/cli/scripts/btrfs-backup.sh
@@ -53,6 +53,7 @@ create_lock() {
     fi
 
     # Create new lock file with current PID
+    sudo touch "$LOCK_FILE"
     sudo echo $$ > "$LOCK_FILE"
 
     # Ensure lock file is removed on script exit