diff --git a/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyCaloClustersAlg.cxx b/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyCaloClustersAlg.cxx
index 5ad00f5b072048c6020fa23289fdae1598e91453..db10655b48239825e88ffc96e82aedafa45b1473 100644
--- a/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyCaloClustersAlg.cxx
+++ b/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyCaloClustersAlg.cxx
@@ -100,7 +100,7 @@ StatusCode ThinNegativeEnergyCaloClustersAlg::execute()
     // Increase the event counter
     ++m_nEventsProcessed;
     
-    // Is truth thinning required?
+    // Is thinning required?
     if (!m_doThinning) {
         return StatusCode::SUCCESS;
     } 
@@ -110,8 +110,8 @@ StatusCode ThinNegativeEnergyCaloClustersAlg::execute()
     if (evtStore()->contains<xAOD::CaloClusterContainer>(m_caloClustersKey)) {
         CHECK( evtStore()->retrieve( caloClusters , m_caloClustersKey ) );
     } else {
-        ATH_MSG_FATAL("No CaloClusterContainer with key "+m_caloClustersKey+" found.");
-        return StatusCode::FAILURE;
+        ATH_MSG_INFO("No CaloClusterContainer with key "+m_caloClustersKey+" found. Thinning cannot be applied for this container");
+        return StatusCode::SUCCESS;
     }
 
     // Set up masks
diff --git a/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyNeutralPFOsAlg.cxx b/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyNeutralPFOsAlg.cxx
index c09f4f53973165db18b9f252f70d43294c975af4..a80e1fc2c2c708ecc7cce94bef97711fdc583f08 100644
--- a/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyNeutralPFOsAlg.cxx
+++ b/PhysicsAnalysis/AnalysisCommon/ThinningUtils/src/ThinNegativeEnergyNeutralPFOsAlg.cxx
@@ -111,8 +111,8 @@ StatusCode ThinNegativeEnergyNeutralPFOsAlg::execute()
     if (evtStore()->contains<xAOD::PFOContainer>(m_neutralPFOsKey)) {
         CHECK( evtStore()->retrieve( neutralPFOs , m_neutralPFOsKey ) );
     } else {
-        ATH_MSG_FATAL("No PFOContainer with key "+m_neutralPFOsKey+" found.");
-        return StatusCode::FAILURE;
+        ATH_MSG_INFO("No PFOContainer with key "+m_neutralPFOsKey+" found. Thinning cannot be applied to this container");
+        return StatusCode::SUCCESS;
     }
 
     // Set up masks