diff --git a/PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx b/PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx
index 253da4de3a6..94fabdf2b62 100644
--- a/PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx
+++ b/PWGEM/Dilepton/TableProducer/createEMEventDilepton.cxx
@@ -14,22 +14,22 @@
 // This code produces reduced events for photon analyses.
 //    Please write to: daiki.sekihata@cern.ch
 
-#include <string>
+#include "PWGEM/Dilepton/DataModel/dileptonTables.h"
+#include "PWGEM/PhotonMeson/DataModel/gammaTables.h"
 
-#include "Framework/runDataProcessing.h"
-#include "Framework/AnalysisTask.h"
-#include "Framework/AnalysisDataModel.h"
-#include "Framework/ASoAHelpers.h"
-#include "ReconstructionDataFormats/Track.h"
+#include "Common/Core/TableHelper.h"
 
-#include "DetectorsBase/GeometryManager.h"
-#include "DataFormatsParameters/GRPObject.h"
-#include "DataFormatsParameters/GRPMagField.h"
 #include "CCDB/BasicCCDBManager.h"
-#include "Common/Core/TableHelper.h"
+#include "DataFormatsParameters/GRPMagField.h"
+#include "DataFormatsParameters/GRPObject.h"
+#include "DetectorsBase/GeometryManager.h"
+#include "Framework/ASoAHelpers.h"
+#include "Framework/AnalysisDataModel.h"
+#include "Framework/AnalysisTask.h"
+#include "Framework/runDataProcessing.h"
+#include "ReconstructionDataFormats/Track.h"
 
-#include "PWGEM/Dilepton/DataModel/dileptonTables.h"
-#include "PWGEM/PhotonMeson/DataModel/gammaTables.h"
+#include <string>
 
 using namespace o2;
 using namespace o2::framework;
@@ -197,14 +197,14 @@ struct CreateEMEventDilepton {
 
       if constexpr (eventtype == EMEventType::kEvent) {
         event_cent(105.f, 105.f, 105.f);
-        event_qvec(
-          999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
-          999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
+        // event_qvec(
+        //   999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
+        //   999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
       } else if constexpr (eventtype == EMEventType::kEvent_Cent) {
         event_cent(collision.centFT0M(), collision.centFT0A(), collision.centFT0C());
-        event_qvec(
-          999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
-          999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
+        // event_qvec(
+        //   999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
+        //   999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
       } else if constexpr (eventtype == EMEventType::kEvent_Cent_Qvec) {
         event_cent(collision.centFT0M(), collision.centFT0A(), collision.centFT0C());
         float q2xft0m = 999.f, q2yft0m = 999.f, q2xft0a = 999.f, q2yft0a = 999.f, q2xft0c = 999.f, q2yft0c = 999.f, q2xbpos = 999.f, q2ybpos = 999.f, q2xbneg = 999.f, q2ybneg = 999.f, q2xbtot = 999.f, q2ybtot = 999.f;
@@ -224,9 +224,9 @@ struct CreateEMEventDilepton {
           q3xft0m, q3yft0m, q3xft0a, q3yft0a, q3xft0c, q3yft0c, q3xbpos, q3ybpos, q3xbneg, q3ybneg, q3xbtot, q3ybtot);
       } else {
         event_cent(105.f, 105.f, 105.f);
-        event_qvec(
-          999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
-          999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
+        // event_qvec(
+        //   999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
+        //   999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
       }
     } // end of collision loop
   } // end of skimEvent
diff --git a/PWGEM/Dilepton/Tasks/CMakeLists.txt b/PWGEM/Dilepton/Tasks/CMakeLists.txt
index 2eed697101d..4dca7f634f9 100644
--- a/PWGEM/Dilepton/Tasks/CMakeLists.txt
+++ b/PWGEM/Dilepton/Tasks/CMakeLists.txt
@@ -146,3 +146,8 @@ o2physics_add_dpl_workflow(tagging-hfe
                     PUBLIC_LINK_LIBRARIES O2::Framework O2::DCAFitter O2Physics::AnalysisCore
                     COMPONENT_NAME Analysis)
 
+o2physics_add_dpl_workflow(qvector-dummy-otf
+                    SOURCES qVectorDummyOTF.cxx
+                    PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore
+                    COMPONENT_NAME Analysis)
+
diff --git a/PWGEM/Dilepton/Tasks/qVectorDummyOTF.cxx b/PWGEM/Dilepton/Tasks/qVectorDummyOTF.cxx
new file mode 100644
index 00000000000..d499a790a71
--- /dev/null
+++ b/PWGEM/Dilepton/Tasks/qVectorDummyOTF.cxx
@@ -0,0 +1,48 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+//
+// ========================
+//
+// This code produces on-the-fly dummy qvector table.
+//    Please write to: daiki.sekihata@cern.ch
+
+#include "PWGEM/Dilepton/DataModel/dileptonTables.h"
+
+#include "Framework/ASoAHelpers.h"
+#include "Framework/AnalysisTask.h"
+#include "Framework/runDataProcessing.h"
+
+using namespace o2;
+using namespace o2::aod;
+using namespace o2::soa;
+using namespace o2::framework;
+using namespace o2::framework::expressions;
+
+struct qVectorDummyOTF {
+  Produces<o2::aod::EMEventsQvec> event_qvec;
+
+  void init(InitContext&) {}
+  ~qVectorDummyOTF() {}
+
+  void process(aod::EMEvents const& collisions)
+  {
+    for (int i = 0; i < collisions.size(); i++) {
+      event_qvec(
+        999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f,
+        999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f, 999.f);
+    } // end of collision loop
+  } // end of process
+};
+
+WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
+{
+  return WorkflowSpec{adaptAnalysisTask<qVectorDummyOTF>(cfgc, TaskName{"qvector-dummy-otf"})};
+}