diff --git a/gtsam_unstable/examples/SmartProjectionFactorExample.cpp b/gtsam_unstable/examples/SmartProjectionFactorExample.cpp
index 40a0a8725..01c2ab3e1 100644
--- a/gtsam_unstable/examples/SmartProjectionFactorExample.cpp
+++ b/gtsam_unstable/examples/SmartProjectionFactorExample.cpp
@@ -108,9 +108,13 @@ int main(int argc, char** argv){
   // QR is much slower than Cholesky, but numerically more stable
   graph.push_back(NonlinearEquality<Pose3>(Symbol('x',1),first_pose));
 
+  LevenbergMarquardtParams params;
+  params.verbosityLM = LevenbergMarquardtParams::TRYLAMBDA;
+  params.verbosity = NonlinearOptimizerParams::ERROR;
+
   cout << "Optimizing" << endl;
   //create Levenberg-Marquardt optimizer to optimize the factor graph
-  LevenbergMarquardtOptimizer optimizer = LevenbergMarquardtOptimizer(graph, initial_estimate);
+  LevenbergMarquardtOptimizer optimizer = LevenbergMarquardtOptimizer(graph, initial_estimate, params);
   Values result = optimizer.optimize();
 
   cout << "Final result sample:" << endl;