diff --git a/test/gtest_simulation_problem_force_torque_inertial_dynamics.cpp b/test/gtest_simulation_problem_force_torque_inertial_dynamics.cpp
index 3cf239ae7564a2080533bddfdf00325a430d596a..bcad1070805729c5c22a0c55621f354577589063 100644
--- a/test/gtest_simulation_problem_force_torque_inertial_dynamics.cpp
+++ b/test/gtest_simulation_problem_force_torque_inertial_dynamics.cpp
@@ -356,15 +356,16 @@ TEST_F(Test_SimulationProblemForceTorqueInertialDynamics_yaml, preintegration_an
              << "\n";
 
     }
+    fout.close();
 }
 
 TEST_F(Test_SimulationProblemForceTorqueInertialDynamics_yaml, simulation)
 {
     // Calibration params
-    Vector6d bias_guess = S->getStateBlock('I')->getState();
-    Vector3d cdm_guess = S->getStateBlock('C')->getState();
+    Vector6d bias_guess    = S->getStateBlock('I')->getState();
+    Vector3d cdm_guess     = S->getStateBlock('C')->getState();
     Vector3d inertia_guess = S->getStateBlock('i')->getState();
-    double   mass_guess = S->getStateBlock('m')->getState()(0);
+    double   mass_guess    = S->getStateBlock('m')->getState()(0);
 
     S->getStateBlock('P')->fix();
     S->getStateBlock('O')->fix();