diff --git a/PathPlanning/LatticePlanner/model_predictive_trajectory_generator.py b/PathPlanning/LatticePlanner/model_predictive_trajectory_generator.py
index f02f3907..cacc6240 100644
--- a/PathPlanning/LatticePlanner/model_predictive_trajectory_generator.py
+++ b/PathPlanning/LatticePlanner/model_predictive_trajectory_generator.py
@@ -14,7 +14,7 @@ from matplotrecorder import matplotrecorder
 maxiter = 1000
 h = np.matrix([0.1, 0.002, 0.002]).T  # parameter sampling distanse
 
-#  matplotrecorder.donothing = True
+matplotrecorder.donothing = True
 
 
 def plot_arrow(x, y, yaw, length=1.0, width=0.5, fc="r", ec="k"):