diff --git a/MuonSpectrometer/MuonValidation/MuonPRDTest/src/MMPRDVariables.cxx b/MuonSpectrometer/MuonValidation/MuonPRDTest/src/MMPRDVariables.cxx
index 83db0618e537a0f6d24cfb43f14ddaeb492eabd0..7fbb6f2c0b8c29b0fb720a49a96c14a197d65306 100644
--- a/MuonSpectrometer/MuonValidation/MuonPRDTest/src/MMPRDVariables.cxx
+++ b/MuonSpectrometer/MuonValidation/MuonPRDTest/src/MMPRDVariables.cxx
@@ -16,7 +16,7 @@
 
 StatusCode MMPRDVariables::fillVariables()
 {
-  ATH_MSG_INFO(" do fillNSWMMPRDVariables()");
+  ATH_MSG_DEBUG(" do fillNSWMMPRDVariables()");
 
   CHECK( this->clearVariables() );
 
@@ -25,8 +25,7 @@ StatusCode MMPRDVariables::fillVariables()
 
   if(nsw_MMPrepDataContainer->size()==0) ATH_MSG_WARNING(" MM PRD Container empty ");
 
-  for(auto it : *nsw_MMPrepDataContainer) {
-    const Muon::MMPrepDataCollection* coll = it;
+  for(const Muon::MMPrepDataCollection* coll : *nsw_MMPrepDataContainer) {
     
     for (unsigned int item=0; item<coll->size(); item++) {
       const Muon::MMPrepData* prd = coll->at(item);
@@ -76,7 +75,7 @@ StatusCode MMPRDVariables::fillVariables()
     }
   }
 
-  ATH_MSG_INFO("processed " << m_NSWMM_nPRDs << " MicroMegas PRD's");
+  ATH_MSG_DEBUG("processed " << m_NSWMM_nPRDs << " MicroMegas PRD's");
   return StatusCode::SUCCESS;
 }
 
diff --git a/MuonSpectrometer/MuonValidation/MuonPRDTest/src/sTGCPRDVariables.cxx b/MuonSpectrometer/MuonValidation/MuonPRDTest/src/sTGCPRDVariables.cxx
index 12320ec65b142294c9397fbad887e09040918965..a1ef967b1cc26696c0e89e3f6031b656cfee4584 100644
--- a/MuonSpectrometer/MuonValidation/MuonPRDTest/src/sTGCPRDVariables.cxx
+++ b/MuonSpectrometer/MuonValidation/MuonPRDTest/src/sTGCPRDVariables.cxx
@@ -12,7 +12,7 @@
 
 StatusCode sTGCPRDVariables::fillVariables()
 {
-  ATH_MSG_INFO("do fillNSWsTGCPRDVariables()");
+  ATH_MSG_DEBUG("do fillNSWsTGCPRDVariables()");
   CHECK( this->clearVariables() );
 
   const Muon::sTgcPrepDataContainer *nsw_sTgcPrepDataContainer = nullptr; 
@@ -20,8 +20,7 @@ StatusCode sTGCPRDVariables::fillVariables()
 
   if(nsw_sTgcPrepDataContainer->size()==0) ATH_MSG_WARNING(" sTgc PRD Container empty ");
 
-  for(auto it : *nsw_sTgcPrepDataContainer ) {
-    const Muon::sTgcPrepDataCollection* coll = it;
+  for(const Muon::sTgcPrepDataCollection* coll : *nsw_sTgcPrepDataContainer ) {
     
     for (unsigned int item=0; item<coll->size(); item++) {
       const Muon::sTgcPrepData* prd = coll->at(item);
@@ -77,7 +76,7 @@ StatusCode sTGCPRDVariables::fillVariables()
     }
   }
 
-  ATH_MSG_INFO("processed " << m_NSWsTGC_nPRDs << " sTGC PRD's");
+  ATH_MSG_DEBUG("processed " << m_NSWsTGC_nPRDs << " sTGC PRD's");
 
   return StatusCode::SUCCESS;
 }