diff --git a/PhysicsAnalysis/AnalysisCommon/EventUtils/src/ParticleCombinerTool.cxx b/PhysicsAnalysis/AnalysisCommon/EventUtils/src/ParticleCombinerTool.cxx
index a231dd86f4684814a6221ff9303dabb6adf22527..872bf525912ee0e8a694cb1fbb27103b89d0cd1d 100644
--- a/PhysicsAnalysis/AnalysisCommon/EventUtils/src/ParticleCombinerTool.cxx
+++ b/PhysicsAnalysis/AnalysisCommon/EventUtils/src/ParticleCombinerTool.cxx
@@ -555,7 +555,7 @@ StatusCode ParticleCombinerTool::buildComposite( xAOD::CompositeParticleContaine
     // Sort the constituents in decending pt order, if requested
     if ( m_sortConstit.value() ) {
       std::sort( anIPartLinkList.begin(), anIPartLinkList.end(),
-                 [this](const xAOD::IParticleLink& a, const xAOD::IParticleLink& b) {
+                 [](const xAOD::IParticleLink& a, const xAOD::IParticleLink& b) {
                    return CxxUtils::fpcompare::greater( (*a)->pt(), (*b)->pt() );
                  } );
     }