diff --git a/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/trajectory/TrajectoryFinder.java b/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/trajectory/TrajectoryFinder.java
index fe0e4e8a2b..e466611b42 100644
--- a/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/trajectory/TrajectoryFinder.java
+++ b/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/trajectory/TrajectoryFinder.java
@@ -229,6 +229,7 @@ public Trajectory findTrajectory(int id, Ray ray, ArrayList<Cross> candCrossList
         
         stateVecs.sort(Comparator.comparing(StateVec::y));
         for (int l = 0; l < stateVecs.size(); l++) {
+            stateVecs.get(l).setSurfaceDetector(DetectorType.CVT.getDetectorId());
             stateVecs.get(l).setPlaneIdx(l);
         }
         traj.setTrajectory(stateVecs);