diff --git a/include/small_gicp/registration/optimizer.hpp b/include/small_gicp/registration/optimizer.hpp
index aa682b0..cfbf52f 100644
--- a/include/small_gicp/registration/optimizer.hpp
+++ b/include/small_gicp/registration/optimizer.hpp
@@ -124,6 +124,7 @@ struct LevenbergMarquardtOptimizer {
           result.T_target_source = new_T;
           lambda /= lambda_factor;
           success = true;
+          e = new_e;
 
           break;
         } else {