diff --git a/InnerDetector/InDetRecTools/TRT_ElectronPidTools/src/TRT_ElectronPidToolRun2.cxx b/InnerDetector/InDetRecTools/TRT_ElectronPidTools/src/TRT_ElectronPidToolRun2.cxx
index 10fab207c1857b39f9f318d01c38bb5bcf5d554c..04e0f80d2defd7c734dd3c973e334c8a2ab48d3b 100644
--- a/InnerDetector/InDetRecTools/TRT_ElectronPidTools/src/TRT_ElectronPidToolRun2.cxx
+++ b/InnerDetector/InDetRecTools/TRT_ElectronPidTools/src/TRT_ElectronPidToolRun2.cxx
@@ -135,7 +135,7 @@ StatusCode InDet::TRT_ElectronPidToolRun2::finalize()
 std::vector<float> InDet::TRT_ElectronPidToolRun2::electronProbability_old(const Trk::Track& track)
 {
   // Simply return values without calculation
-  std::vector<float> PIDvalues = defaultElectronProbability();
+  std::vector<float> PIDvalues = Trk::eProbabilityDefault;
   const Trk::TrackParameters* perigee = track.perigeeParameters();
   if (!perigee) { return PIDvalues; }
   return PIDvalues;
@@ -167,7 +167,7 @@ InDet::TRT_ElectronPidToolRun2::electronProbability(const Trk::Track& track) con
  }
 
   // Initialize the vector with default PID values
-  std::vector<float> PIDvalues = defaultElectronProbability();
+  std::vector<float> PIDvalues = Trk::eProbabilityDefault;
 
   // Check for perigee:
   const Trk::TrackParameters* perigee = track.perigeeParameters();
diff --git a/Tracking/TrkEvent/TrkTrackSummary/CMakeLists.txt b/Tracking/TrkEvent/TrkTrackSummary/CMakeLists.txt
index 7ea617ee3f7fc72883e62eb64ed826dd84d5dbb0..5f892915ea279feceb5d3af2af1ce2cf85f96d12 100644
--- a/Tracking/TrkEvent/TrkTrackSummary/CMakeLists.txt
+++ b/Tracking/TrkEvent/TrkTrackSummary/CMakeLists.txt
@@ -7,7 +7,7 @@ atlas_subdir( TrkTrackSummary )
 atlas_add_library( TrkTrackSummary
                    src/*.cxx
                    PUBLIC_HEADERS TrkTrackSummary
-                   LINK_LIBRARIES Identifier TrkToolInterfaces
+                   LINK_LIBRARIES Identifier
                    PRIVATE_LINK_LIBRARIES GaudiKernel )
 
 atlas_add_dictionary( TrkTrackSummaryDict
diff --git a/Tracking/TrkEvent/TrkTrackSummary/TrkTrackSummary/TrackSummary.h b/Tracking/TrkEvent/TrkTrackSummary/TrkTrackSummary/TrackSummary.h
index 86ad7027b996e5a3bab02f7b916271b891d3fdcf..64964c1f29ee5403045af92453477133a3f25851 100755
--- a/Tracking/TrkEvent/TrkTrackSummary/TrkTrackSummary/TrackSummary.h
+++ b/Tracking/TrkEvent/TrkTrackSummary/TrkTrackSummary/TrackSummary.h
@@ -149,6 +149,8 @@ static const std::vector<unsigned int> floatSummaryTypes = {eProbabilityComb_res
         numberOfeProbabilityTypes   = 8        
     };
 
+static const std::vector<float> eProbabilityDefault(numberOfeProbabilityTypes, 0.5);
+
 /** enumerates the various detector types currently accessible from the isHit() method.
 \todo work out how to add muons to this*/
 enum DetectorType {
diff --git a/Tracking/TrkEvent/TrkTrackSummary/src/TrackSummary.cxx b/Tracking/TrkEvent/TrkTrackSummary/src/TrackSummary.cxx
index b4e10825047c2ee39ccb673f43294a3e2b228f3f..42de737e96ff33bba78b5546113843a5aa5f1a3c 100755
--- a/Tracking/TrkEvent/TrkTrackSummary/src/TrackSummary.cxx
+++ b/Tracking/TrkEvent/TrkTrackSummary/src/TrackSummary.cxx
@@ -11,7 +11,6 @@
 #include "TrkTrackSummary/TrackSummary.h"
 #include "TrkTrackSummary/InDetTrackSummary.h"
 #include "TrkTrackSummary/MuonTrackSummary.h"
-#include "TrkToolInterfaces/ITRT_ElectronPidTool.h"
 #include "GaudiKernel/MsgStream.h"
 
 std::atomic<unsigned int> Trk::TrackSummary::s_numberOfInstantiations{0};
@@ -20,7 +19,7 @@ const int    Trk::TrackSummary::SummaryTypeNotSet=-1;
 Trk::TrackSummary::TrackSummary()
     :
     m_information(numberOfTrackSummaryTypes, SummaryTypeNotSet),
-    m_eProbability(ITRT_ElectronPidTool::defaultElectronProbability()),
+    m_eProbability(Trk::eProbabilityDefault),
     m_dedx(-1),
     m_nhitsdedx(-1),
     m_nhitsoverflowdedx(-1),
@@ -106,7 +105,7 @@ Trk::TrackSummary& Trk::TrackSummary::operator+=(const TrackSummary& ts)
 }
            m_information[i]+= ts.m_information[i];
         }
-        if (ts.m_eProbability != ITRT_ElectronPidTool::defaultElectronProbability()) {
+        if (ts.m_eProbability != Trk::eProbabilityDefault) {
           m_eProbability = ts.m_eProbability;
         }
         if (m_dedx<0 && ts.m_dedx>=0) {
diff --git a/Tracking/TrkTools/TrkToolInterfaces/TrkToolInterfaces/ITRT_ElectronPidTool.h b/Tracking/TrkTools/TrkToolInterfaces/TrkToolInterfaces/ITRT_ElectronPidTool.h
index 75fcb362e09ad81a06898e0ff206f34f25417a34..7050bd36525aa6e525cfbe35687ff28352a88f88 100644
--- a/Tracking/TrkTools/TrkToolInterfaces/TrkToolInterfaces/ITRT_ElectronPidTool.h
+++ b/Tracking/TrkTools/TrkToolInterfaces/TrkToolInterfaces/ITRT_ElectronPidTool.h
@@ -45,19 +45,6 @@ namespace Trk {
     virtual double probHT( const double p, const Trk::ParticleHypothesis hypothesis, const int HitPart, const int Layer, const int Strawlayer) const = 0;
     virtual double probHTRun2( float pTrk, Trk::ParticleHypothesis hypothesis, int TrtPart, int GasType, int StrawLayer, float ZR, float rTrkWire, float Occupancy ) const = 0;
 
-    static std::vector<float> defaultElectronProbability() {
-      std::vector<float> PIDvalues(Trk::numberOfeProbabilityTypes);
-      PIDvalues[Trk::eProbabilityComb] = 0.5;
-      PIDvalues[Trk::eProbabilityHT] = 0.5;
-      PIDvalues[Trk::eProbabilityToT] = 0.5;
-      PIDvalues[Trk::eProbabilityBrem] = 0.5;
-      PIDvalues[Trk::eProbabilityNN] = 0.5;
-      PIDvalues[Trk::TRTTrackOccupancy] = 0.0;
-      PIDvalues[Trk::TRTdEdx] = 0.0;
-      PIDvalues[Trk::eProbabilityNumberOfTRTHitsUsedFordEdx] = 0.0;
-      return PIDvalues;
-    }
-
   };
 
   inline const InterfaceID& Trk::ITRT_ElectronPidTool::interfaceID()
diff --git a/Tracking/TrkTools/TrkTrackSummaryTool/src/TrackSummaryTool.cxx b/Tracking/TrkTools/TrkTrackSummaryTool/src/TrackSummaryTool.cxx
index 274678b37a0202fc24108af3a6d9bde523a8e956..a6f4e02619da0d50d72ac1dcbaaf19884d500acd 100755
--- a/Tracking/TrkTools/TrkTrackSummaryTool/src/TrackSummaryTool.cxx
+++ b/Tracking/TrkTools/TrkTrackSummaryTool/src/TrackSummaryTool.cxx
@@ -192,7 +192,7 @@ information.resize(std::min(information.size(),
                             static_cast<size_t>(numberOfTrackSummaryTypes)));
 
 // Troels.Petersen@cern.ch:
-std::vector<float> eProbability = ITRT_ElectronPidTool::defaultElectronProbability();
+std::vector<float> eProbability = Trk::eProbabilityDefault;
 
   float dedx = -1;
   int nhitsuseddedx = -1;
@@ -339,7 +339,7 @@ void Trk::TrackSummaryTool::updateSharedHitCount(const Track& track, const Trk::
 
 void Trk::TrackSummaryTool::updateAdditionalInfo(const Track& track, TrackSummary &summary, bool initialise_to_zero) const
 {
-  std::vector<float> eProbability = ITRT_ElectronPidTool::defaultElectronProbability();
+  std::vector<float> eProbability = Trk::eProbabilityDefault;
   if (!m_eProbabilityTool.empty()) {
     eProbability = m_eProbabilityTool->electronProbability(track);
     int nHits = eProbability[Trk::eProbabilityNumberOfTRTHitsUsedFordEdx];