diff --git a/launch/__pycache__/sas_robot_driver_franka_simulation_example.cpython-312.pyc b/launch/__pycache__/sas_robot_driver_franka_simulation_example.cpython-312.pyc
new file mode 100644
index 0000000..1dcafc2
Binary files /dev/null and b/launch/__pycache__/sas_robot_driver_franka_simulation_example.cpython-312.pyc differ
diff --git a/src/hand/qros_effector_driver_franka_hand.cpp b/src/hand/qros_effector_driver_franka_hand.cpp
index 88af19a..d9f0975 100644
--- a/src/hand/qros_effector_driver_franka_hand.cpp
+++ b/src/hand/qros_effector_driver_franka_hand.cpp
@@ -122,7 +122,7 @@ namespace qros
         return;
 #endif
         RCLCPP_WARN_STREAM(node_->get_logger(),"::[EffectorDriverFrankaHand]::disconnecting...");
-        gripper_sptr_->~Gripper();
+        gripper_sptr_.reset();
         gripper_sptr_ = nullptr;
     }