diff -u -r1.6 -r1.7
--- TrackerDigiDriver.java	23 Jan 2012 23:13:07 -0000	1.6
+++ TrackerDigiDriver.java	14 Mar 2012 01:25:41 -0000	1.7
@@ -22,13 +22,14 @@

 import org.lcsim.recon.tracking.digitization.sisim.StripHitMaker;
 import org.lcsim.recon.tracking.digitization.sisim.config.SimTrackerHitReadoutDriver;
 import org.lcsim.util.Driver;

+import org.lcsim.util.lcio.LCIOUtil;

 
 /**
  * This Driver runs the tracker digitization to create raw hits and strip hits from simulated data.
  * The output can be used by a track reconstruction algorithm like Seed Tracker.
  * 
  * @author jeremym

- * @version $Id: TrackerDigiDriver.java,v 1.6 2012/01/23 23:13:07 jeremy Exp $

+ * @version $Id: TrackerDigiDriver.java,v 1.7 2012/03/14 01:25:41 jeremy Exp $

  */
 public class TrackerDigiDriver extends Driver 
 {

@@ -320,7 +321,7 @@

         }
              
         // Put output hits into collection.

-        int flag = 0;        

+        int flag = LCIOUtil.bitSet(0, 31, true); // Turn on 64-bit cell ID.

         event.put(this.rawTrackerHitOutputCollectionName, rawHits, RawTrackerHit.class, flag, toString()); 
         event.put(this.stripHitOutputCollectionName, stripHits1D, SiTrackerHitStrip1D.class, 0, toString());
     }