diff --git a/InnerDetector/InDetDigitization/FastSiDigitization/src/PixelFastDigitizationTool.cxx b/InnerDetector/InDetDigitization/FastSiDigitization/src/PixelFastDigitizationTool.cxx
index d388adcf10987074391719eef8fcdac7143e66f7..c295e24a4ed0853477e92fca2963e6df50681295 100644
--- a/InnerDetector/InDetDigitization/FastSiDigitization/src/PixelFastDigitizationTool.cxx
+++ b/InnerDetector/InDetDigitization/FastSiDigitization/src/PixelFastDigitizationTool.cxx
@@ -254,7 +254,7 @@ StatusCode PixelFastDigitizationTool::processBunchXing(int bunchXing,
   TimedHitCollList::iterator iColl(hitCollList.begin());
   TimedHitCollList::iterator endColl(hitCollList.end());
 
-  for( ; iColl != endColl; iColl++) {
+  for( ; iColl != endColl; ++iColl) {
     SiHitCollection *siHitColl = new SiHitCollection(*iColl->second);
     PileUpTimeEventIndex timeIndex(iColl->first);
     ATH_MSG_DEBUG("SiHitCollection found with " << siHitColl->size() <<
@@ -752,7 +752,7 @@ StatusCode PixelFastDigitizationTool::digitize(const EventContext& ctx)
 
             //Store HepMcParticleLink connected to the cluster removed from the collection
             std::pair<PRD_MultiTruthCollection::iterator,PRD_MultiTruthCollection::iterator> saved_hit = m_pixPrdTruth->equal_range(currentCluster->identify());
-            for (PRD_MultiTruthCollection::iterator this_hit = saved_hit.first; this_hit != saved_hit.second; this_hit++)
+            for (PRD_MultiTruthCollection::iterator this_hit = saved_hit.first; this_hit != saved_hit.second; ++this_hit)
               {
                 hit_vector.push_back(this_hit->second);
               }
diff --git a/InnerDetector/InDetDigitization/FastSiDigitization/src/SCT_FastDigitizationTool.cxx b/InnerDetector/InDetDigitization/FastSiDigitization/src/SCT_FastDigitizationTool.cxx
index 26e289494138ab78ef8dbc6d053693b571dd5fb9..268956eb6aaab6f3e8be77448ec1042174f78c70 100644
--- a/InnerDetector/InDetDigitization/FastSiDigitization/src/SCT_FastDigitizationTool.cxx
+++ b/InnerDetector/InDetDigitization/FastSiDigitization/src/SCT_FastDigitizationTool.cxx
@@ -185,7 +185,7 @@ StatusCode SCT_FastDigitizationTool::processBunchXing(int bunchXing,
   TimedHitCollList::iterator iColl(hitCollList.begin());
   TimedHitCollList::iterator endColl(hitCollList.end());
 
-  for( ; iColl != endColl; iColl++) {
+  for( ; iColl != endColl; ++iColl) {
     SiHitCollection *siHitColl = new SiHitCollection(*iColl->second);
     PileUpTimeEventIndex timeIndex(iColl->first);
     ATH_MSG_DEBUG("SiHitCollection found with " << siHitColl->size() <<
@@ -832,7 +832,7 @@ StatusCode SCT_FastDigitizationTool::digitize(const EventContext& ctx)
 
                     //Store HepMcParticleLink connected to the cluster removed from the collection
                     std::pair<PRD_MultiTruthCollection::iterator,PRD_MultiTruthCollection::iterator> saved_hit = m_sctPrdTruth->equal_range(existingCluster->identify());
-                    for (PRD_MultiTruthCollection::iterator this_hit = saved_hit.first; this_hit != saved_hit.second; this_hit++)
+                    for (PRD_MultiTruthCollection::iterator this_hit = saved_hit.first; this_hit != saved_hit.second; ++this_hit)
                       {
                         hit_vector.push_back(this_hit->second);
                       }
diff --git a/InnerDetector/InDetDigitization/FastSiDigitization/src/SiSmearedDigitizationTool.cxx b/InnerDetector/InDetDigitization/FastSiDigitization/src/SiSmearedDigitizationTool.cxx
index dd1e97a14d66cba142bd1fbb59833a2947d41e47..c90d77971f1f3a90b054e9eb22e53337df399ab8 100644
--- a/InnerDetector/InDetDigitization/FastSiDigitization/src/SiSmearedDigitizationTool.cxx
+++ b/InnerDetector/InDetDigitization/FastSiDigitization/src/SiSmearedDigitizationTool.cxx
@@ -311,7 +311,7 @@ StatusCode SiSmearedDigitizationTool::processBunchXing(int bunchXing,
   TimedHitCollList::iterator iColl(hitCollList.begin());
   TimedHitCollList::iterator endColl(hitCollList.end());
 
-  for( ; iColl != endColl; iColl++) {
+  for( ; iColl != endColl; ++iColl) {
     SiHitCollection *siHitColl = new SiHitCollection(*iColl->second);
     PileUpTimeEventIndex timeIndex(iColl->first);
     ATH_MSG_DEBUG("SiHitCollection found with " << siHitColl->size() <<