diff --git a/reco/detectors/trd/CbmTrdModuleRecR.cxx b/reco/detectors/trd/CbmTrdModuleRecR.cxx
index a804d8aa9a6c63c46e1dbc14634865b98019b6c9..b99feaec9864a2bbb262160ef8e9939e07303296 100644
--- a/reco/detectors/trd/CbmTrdModuleRecR.cxx
+++ b/reco/detectors/trd/CbmTrdModuleRecR.cxx
@@ -68,7 +68,7 @@ void CbmTrdModuleRecR::Clear(Option_t* opt)
 }
 
 //_______________________________________________________________________________
-Int_t CbmTrdModuleRecR::FindClusters()
+Int_t CbmTrdModuleRecR::FindClusters(bool)
 {
 
   std::deque<std::tuple<Int_t, Bool_t, const CbmTrdDigi*>>::iterator mainit;
diff --git a/reco/detectors/trd/CbmTrdModuleRecR.h b/reco/detectors/trd/CbmTrdModuleRecR.h
index 207aeaccae455e8d18c9b6c82832468e84f7f8d9..c54c0edc5e330469b0b55e59a5a652fb545925cd 100644
--- a/reco/detectors/trd/CbmTrdModuleRecR.h
+++ b/reco/detectors/trd/CbmTrdModuleRecR.h
@@ -37,7 +37,7 @@ public:
   /**
    * \brief Steering routine for finding digits clusters
    **/
-  virtual Int_t FindClusters();
+  virtual Int_t FindClusters(bool clr = true);
 
   Int_t GetOverThreshold() const { return fDigiCounter; }
   Double_t GetSpaceResolution(Double_t val = 3.0);