diff --git a/scripts/createEDM4hepFile.py b/scripts/createEDM4hepFile.py
index d8e070fe2..bfe2a4e6d 100644
--- a/scripts/createEDM4hepFile.py
+++ b/scripts/createEDM4hepFile.py
@@ -229,6 +229,7 @@
         track.addToTrackStates(state)
     track.addToTrackerHits(tracker_hit)
     track.addToTracks(track)
+    track.setNholes(next(counter))
     frame.put(tracks, "TrackCollection")
 
     vertex = edm4hep.VertexCollection()