diff --git a/workspace/src/application_pkg/application_pkg/web_node.py b/workspace/src/application_pkg/application_pkg/web_node.py
index bdd5ee7..2554bfc 100755
--- a/workspace/src/application_pkg/application_pkg/web_node.py
+++ b/workspace/src/application_pkg/application_pkg/web_node.py
@@ -25,7 +25,7 @@ class WebNode(Node):
             String, '/web/pid_config', 10
         )
 
-        self.declare_parameter('pid_config_file', 'pid_config.json')
+        self.declare_parameter('pid_config_file', 'data/pid_config.json')
         self._pid_config_file = self.get_parameter('pid_config_file').value
         self._pid_config = self._load_pid_config()
 
@@ -131,6 +131,7 @@ class WebNode(Node):
 
     def _save_pid_config(self):
         try:
+            os.makedirs(os.path.dirname(self._pid_config_file), exist_ok=True)
             with open(self._pid_config_file, 'w') as f:
                 json.dump(self._pid_config, f, indent=2)
             self.get_logger().info(