diff --git a/pybar/scans/tune_fei4.py b/pybar/scans/tune_fei4.py
index <HASH>..<HASH> 100644
--- a/pybar/scans/tune_fei4.py
+++ b/pybar/scans/tune_fei4.py
@@ -28,8 +28,8 @@ class Fei4Tuning(GdacTuning, TdacTuning, FeedbackTuning, FdacTuning):
     *) measurements from IBL wafer probing

     '''

     _default_run_conf = {

-        "broadcast_commands": False,

-        "threaded_scan": False,

+        "broadcast_commands": False,  # do not change, keep False, otherwise unexpected bahavior

+        "threaded_scan": True,  # if True, parallelize tuning

         # tuning parameters

         "target_threshold": 30,  # target threshold

         "target_charge": 280,  # target charge
MAINT: enable threading for tuning to parallelize the task