diff --git a/reco/L1/L1Algo/L1CATrackFinder.cxx b/reco/L1/L1Algo/L1CATrackFinder.cxx
index 6a969def62eeef27598a118ef004575fc5638209..3ce72a9182496576fe570cede7ce6e3bb21e7a91 100644
--- a/reco/L1/L1Algo/L1CATrackFinder.cxx
+++ b/reco/L1/L1Algo/L1CATrackFinder.cxx
@@ -79,7 +79,7 @@ inline void L1Algo::f10(  // input
   // output
   fvec* u_front_l, fvec* u_back_l, fvec* zPos_l, THitI* hitsl, fvec* HitTime_l, fvec* HitTimeEr,
   // comment unused parameters, FU, 18.01.21
-  fvec* Event_l, fvec* /*d_x*/, fvec* /*d_y*/, fvec* /*d_xy*/, fvec* d_u, fvec* d_v)
+  fvec* /*Event_l*/, fvec* /*d_x*/, fvec* /*d_y*/, fvec* /*d_xy*/, fvec* d_u, fvec* d_v)
 {
   const Tindex& end_lh = start_lh + n1_l;
 
diff --git a/reco/L1/OffLineInterface/CbmL1GlobalTrackFinder.cxx b/reco/L1/OffLineInterface/CbmL1GlobalTrackFinder.cxx
index 89b2463c2cc31b9e1e7137b2fe6e3b148ba6f767..1663936a16d40c721cccbe45c02988648ccec7ae 100644
--- a/reco/L1/OffLineInterface/CbmL1GlobalTrackFinder.cxx
+++ b/reco/L1/OffLineInterface/CbmL1GlobalTrackFinder.cxx
@@ -271,7 +271,7 @@ void CbmL1GlobalTrackFinder::CbmL1TrackToCbmTrdTrack(CbmL1Track l1track, CbmTrdT
 // -------------------------------------------------------------------------
 
 // -----   Public method CbmL1TrackToCbmTofTrack   ------------------------------------------
-void CbmL1GlobalTrackFinder::CbmL1TrackToCbmTofTrack(CbmL1Track l1track, CbmTofTrack* track, int systemIdT)
+void CbmL1GlobalTrackFinder::CbmL1TrackToCbmTofTrack(CbmL1Track l1track, CbmTofTrack* /*track*/, int systemIdT)
 {
   Int_t ndf = 0;
 
diff --git a/reco/L1/OffLineInterface/CbmL1RichENNRingFinderParallel.cxx b/reco/L1/OffLineInterface/CbmL1RichENNRingFinderParallel.cxx
index 1307c9ac723dfdf68fc210b53396dcf129e22309..2858b1c4badd39e617292b1fd5ffd7ce0ef8033a 100644
--- a/reco/L1/OffLineInterface/CbmL1RichENNRingFinderParallel.cxx
+++ b/reco/L1/OffLineInterface/CbmL1RichENNRingFinderParallel.cxx
@@ -45,7 +45,7 @@ using std::ios;
 using std::sqrt;
 using std::vector;
 
-CbmL1RichENNRingFinderParallel::CbmL1RichENNRingFinderParallel(Int_t verbose) : fRecoTime(0), fNEvents(0)
+CbmL1RichENNRingFinderParallel::CbmL1RichENNRingFinderParallel(Int_t /*verbose*/) : fRecoTime(0), fNEvents(0)
 {
 #ifdef PRINT_TIMING
   TString name_tmp[NTimers] = {