--- PamCut/TrkCuts/TrkDedxNucleiCut/TrkDedxNucleiCut.cpp	2010/07/08 14:00:26	1.2
+++ PamCut/TrkCuts/TrkDedxNucleiCut/TrkDedxNucleiCut.cpp	2015/03/25 17:38:09	1.3
@@ -11,7 +11,9 @@
 
 int TrkDedxNucleiCut::Check(PamLevel2 *event) {
 
-  TrkTrack *track = event->GetTrack(0)->GetTrkTrack();
+//  TrkTrack *track = event->GetTrack(0)->GetTrkTrack();
+    if(event->GetNTracks(_trkAlg)==0)return 0;    
+    ExtTrack *track = event->GetTrack(0,_trkAlg)->GetExtTrack();
   float R = track->GetRigidity();
   float dEdx = track->GetDEDX();