diff --git a/xfel_calibrate/calibrate.py b/xfel_calibrate/calibrate.py
index d6609ec89112e2156806864ee5cc6557813edfbf..c8063418fbf73628a3827101b51117304211dbe1 100755
--- a/xfel_calibrate/calibrate.py
+++ b/xfel_calibrate/calibrate.py
@@ -441,6 +441,7 @@ def concurrent_run(temp_path, nb, nbname, args, cparm=None, cval=None,
                 temp_path=temp_path) + " -p {}".format(sprof)
             srun_base = srun_base.split()
         else:
+            this_res = reservation if priority == 1 else reservation_char
             srun_base = launcher_command.format(
                 temp_path=temp_path) + " --reservation={}".format(reservation)
             srun_base = srun_base.split()