diff --git a/gtsam/linear/tests/testNoiseModel.cpp b/gtsam/linear/tests/testNoiseModel.cpp
index 92774a133..f83ba7831 100644
--- a/gtsam/linear/tests/testNoiseModel.cpp
+++ b/gtsam/linear/tests/testNoiseModel.cpp
@@ -661,14 +661,15 @@ TEST(NoiseModel, robustNoiseDCS)
 TEST(NoiseModel, robustNoiseL2WithDeadZone)
 {
   double dead_zone_size = 1.0;
-  SharedNoiseModel robust = noiseModel::Robust::Create(
+  auto robust = noiseModel::Robust::Create(
       noiseModel::mEstimator::L2WithDeadZone::Create(dead_zone_size),
       Unit::Create(3));
 
   for (int i = 0; i < 5; i++) {
-    Vector3 error = Vector3(i, 0, 0);
+    Vector error = Vector3(i, 0, 0);
+    robust->WhitenSystem(error);
     DOUBLES_EQUAL(std::fmax(0, i - dead_zone_size) * i,
-                  robust->loss(robust->squaredMahalanobisDistance(error)), 1e-8);
+                  robust->squaredMahalanobisDistance(error), 1e-8);
   }
 }