diff --git a/MuonSpectrometer/MuonCnv/MuonMM_CnvTools/src/MM_RawDataProviderToolCore.cxx b/MuonSpectrometer/MuonCnv/MuonMM_CnvTools/src/MM_RawDataProviderToolCore.cxx
index d166f6da9f30d342db14d1897edb504cf3c65d2b..2a3e9b264996742067f04420961253528a156510 100644
--- a/MuonSpectrometer/MuonCnv/MuonMM_CnvTools/src/MM_RawDataProviderToolCore.cxx
+++ b/MuonSpectrometer/MuonCnv/MuonMM_CnvTools/src/MM_RawDataProviderToolCore.cxx
@@ -32,7 +32,7 @@ StatusCode Muon::MM_RawDataProviderToolCore::convertIntoContainer(const std::vec
 {
   // Loop on the passed ROB fragments, and call the decoder for each one to fill the RDO container.
   for (const ROBFragment* fragment : vecRobs)
-    StatusCode st = m_decoder->fillCollection(*fragment, rdoIdhVect, mmRdoContainer); // always returns StatusCode::SUCCESS
+    ATH_CHECK( m_decoder->fillCollection(*fragment, rdoIdhVect, mmRdoContainer) ); // always returns StatusCode::SUCCESS
 
   ATH_MSG_DEBUG("Size of mmRdoContainer is " << mmRdoContainer.size());
   return StatusCode::SUCCESS;
diff --git a/MuonSpectrometer/MuonCnv/MuonSTGC_CnvTools/src/STGC_RawDataProviderToolCore.cxx b/MuonSpectrometer/MuonCnv/MuonSTGC_CnvTools/src/STGC_RawDataProviderToolCore.cxx
index a63d5a8bbd8969ea41bc4cba1b19735eb10951f9..52c6bd9e754b6796ed83b30e87117973392772ff 100644
--- a/MuonSpectrometer/MuonCnv/MuonSTGC_CnvTools/src/STGC_RawDataProviderToolCore.cxx
+++ b/MuonSpectrometer/MuonCnv/MuonSTGC_CnvTools/src/STGC_RawDataProviderToolCore.cxx
@@ -30,10 +30,8 @@ StatusCode Muon::STGC_RawDataProviderToolCore::convertIntoContainer(const std::v
 {
   // Loop on the passed ROB fragments, and call the decoder for each one to fill the RDO container.
 
-  static std::atomic_int DecodeErrCount{0};
-
   for (const ROBFragment* fragment : vecRobs)
-    StatusCode st = m_decoder->fillCollection(*fragment, rdoIdhVect, stgcRdoContainer); // always returns StatusCode::SUCCESS
+    ATH_CHECK( m_decoder->fillCollection(*fragment, rdoIdhVect, stgcRdoContainer) ); // always returns StatusCode::SUCCESS
 
   ATH_MSG_DEBUG("Size of sTgcRdoContainer is " << stgcRdoContainer.size());
   return StatusCode::SUCCESS;