diff --git a/reco/eventbuilder/digis/CbmAlgoBuildRawEvents.cxx b/reco/eventbuilder/digis/CbmAlgoBuildRawEvents.cxx
index f0cd55ebb1963132234e798d6d224e3cee7012c5..38b304fa675a4aed2adf9e16f190bd52c4f2c8d8 100644
--- a/reco/eventbuilder/digis/CbmAlgoBuildRawEvents.cxx
+++ b/reco/eventbuilder/digis/CbmAlgoBuildRawEvents.cxx
@@ -184,6 +184,7 @@ void CbmAlgoBuildRawEvents::ProcessTs()
 void CbmAlgoBuildRawEvents::InitTs()
 {
   /// Reset TS based variables (analysis per TS = no building over the border)
+  fuCurEv = 0;
 
   /// Reference detector
   if (fRefDet.detId != ECbmModuleId::kNotExist) {