diff --git a/source/LumiCalReco/src/MarlinLumiCalClusterer.cpp b/source/LumiCalReco/src/MarlinLumiCalClusterer.cpp
index 48dfb32..65ae183 100644
--- a/source/LumiCalReco/src/MarlinLumiCalClusterer.cpp
+++ b/source/LumiCalReco/src/MarlinLumiCalClusterer.cpp
@@ -57,8 +57,7 @@ void MarlinLumiCalClusterer::TryMarlinLumiCalClusterer(EVENT::LCEvent* evt) {
        create clusters using: LumiCalClustererClass
        -------------------------------------------------------------------------- */
 
-    if (!LumiCalClusterer.processEvent(evt))
-      return;
+    bool stat = LumiCalClusterer.processEvent(evt);
 
     LCCollectionVec* LCalClusterCol = new LCCollectionVec(LCIO::CLUSTER);
     IMPL::LCFlagImpl lcFlagImpl;
@@ -67,27 +66,29 @@ void MarlinLumiCalClusterer::TryMarlinLumiCalClusterer(EVENT::LCEvent* evt) {
 
     LCCollectionVec* LCalRPCol = new LCCollectionVec(LCIO::RECONSTRUCTEDPARTICLE);
 
-    streamlog_out(DEBUG6) << " Transfering reco results to LCalClusterCollection....." << std::endl;
+    if (stat) {
+      streamlog_out(DEBUG6) << " Transfering reco results to LCalClusterCollection....." << std::endl;
 
-    for (int armNow = -1; armNow < 2; armNow += 2) {
-      streamlog_out(DEBUG6) << " Arm  " << std::setw(4) << armNow
-                            << "\t Number of clusters: " << LumiCalClusterer._superClusterIdToCellId[armNow].size()
-                            << std::endl;
+      for (int armNow = -1; armNow < 2; armNow += 2) {
+        streamlog_out(DEBUG6) << " Arm  " << std::setw(4) << armNow
+                              << "\t Number of clusters: " << LumiCalClusterer._superClusterIdToCellId[armNow].size()
+                              << std::endl;
 
-      for (auto const& pairIDCells : LumiCalClusterer._superClusterIdToCellId[armNow]) {
-        const int  clusterId       = pairIDCells.first;
-        LCCluster& thisClusterInfo = LumiCalClusterer._superClusterIdClusterInfo[armNow][clusterId];
-        thisClusterInfo.recalculatePositionFromHits(gmc);
-        auto objectTuple(gmc.getLCIOObjects(thisClusterInfo, _minClusterEngy, _cutOnFiducialVolume));
-        if (std::get<0>(objectTuple) == nullptr)
-          continue;
+        for (auto const& pairIDCells : LumiCalClusterer._superClusterIdToCellId[armNow]) {
+          const int  clusterId       = pairIDCells.first;
+          LCCluster& thisClusterInfo = LumiCalClusterer._superClusterIdClusterInfo[armNow][clusterId];
+          thisClusterInfo.recalculatePositionFromHits(gmc);
+          auto objectTuple(gmc.getLCIOObjects(thisClusterInfo, _minClusterEngy, _cutOnFiducialVolume));
+          if (std::get<0>(objectTuple) == nullptr)
+            continue;
 
-        LCalClusterCol->addElement(std::get<0>(objectTuple));
-        LCalRPCol->addElement(std::get<1>(objectTuple));
+          LCalClusterCol->addElement(std::get<0>(objectTuple));
+          LCalRPCol->addElement(std::get<1>(objectTuple));
+        }
       }
     }
 
-    //Add collections to the event if there are clusters
+    //Add collections to the event
     evt->addCollection(LCalClusterCol, LumiClusterColName);
     evt->addCollection(LCalRPCol, LumiRecoParticleColName);