diff --git a/MC/bin/o2dpg_sim_workflow.py b/MC/bin/o2dpg_sim_workflow.py
index ebc33953b..7c8ad051f 100755
--- a/MC/bin/o2dpg_sim_workflow.py
+++ b/MC/bin/o2dpg_sim_workflow.py
@@ -1849,9 +1849,10 @@ def remove_json_prefix(path):
                  configFilePath='json://${O2DPG_ROOT}/MC/config/QC/json/tpc-qc-standard-direct.json')
 
      ### TRD
+     # TODO: check if the readerCommand also reperforms tracklet construction (which already done in digitization)
      addQCPerTF(taskName='trdDigitsQC',
                 needs=[TRDDigitask['name']],
-                readerCommand='o2-trd-trap-sim',
+                readerCommand='o2-trd-trap-sim --disable-root-output true',
                 configFilePath='json://${O2DPG_ROOT}/MC/config/QC/json/trd-standalone-task.json')
 
      addQCPerTF(taskName='trdTrackingQC',