diff --git a/nav2_bringup/bringup/launch/nav2_localization_launch.py b/nav2_bringup/bringup/launch/nav2_localization_launch.py
index 597f9fddd1f11b3e1fc4015d963548b853eced80..bbf5e78b3306c49e5bff1a97426d8ac3a47b7008 100644
--- a/nav2_bringup/bringup/launch/nav2_localization_launch.py
+++ b/nav2_bringup/bringup/launch/nav2_localization_launch.py
@@ -64,7 +64,7 @@ def generate_launch_description():
         SetEnvironmentVariable('RCUTILS_CONSOLE_STDOUT_LINE_BUFFERED', '1'),
 
         DeclareLaunchArgument(
-            'namespace', default_value='navigation',
+            'namespace', default_value='',
             description='Top-level namespace'),
 
         DeclareLaunchArgument(
diff --git a/nav2_bringup/bringup/launch/nav2_navigation_launch.py b/nav2_bringup/bringup/launch/nav2_navigation_launch.py
index b7939a7fb780cb1497cefd677e9a4092fd2b358d..7f82d6619cfd84d3c9205f0beaec8a286a1a452a 100644
--- a/nav2_bringup/bringup/launch/nav2_navigation_launch.py
+++ b/nav2_bringup/bringup/launch/nav2_navigation_launch.py
@@ -71,7 +71,7 @@ def generate_launch_description():
         SetEnvironmentVariable('RCUTILS_CONSOLE_STDOUT_LINE_BUFFERED', '1'),
 
         DeclareLaunchArgument(
-            'namespace', default_value='navigation',
+            'namespace', default_value='',
             description='Top-level namespace'),
 
         DeclareLaunchArgument(
diff --git a/nav2_bringup/bringup/params/nav2_params.yaml b/nav2_bringup/bringup/params/nav2_params.yaml
index 7d1bca3db9d3992145a8deb17d17adc5af5267ef..6445a187632a76badbfe60f0443f0f890288fa25 100644
--- a/nav2_bringup/bringup/params/nav2_params.yaml
+++ b/nav2_bringup/bringup/params/nav2_params.yaml
@@ -49,7 +49,6 @@ amcl_rclcpp_node:
 bt_navigator:
   ros__parameters:
     use_sim_time: True
-    hi: true
     bt_xml_filename: "navigate_w_replanning_and_recovery.xml"
     plugin_lib_names:
     - nav2_compute_path_to_pose_action_bt_node
diff --git a/nav2_bt_navigator/src/bt_navigator.cpp b/nav2_bt_navigator/src/bt_navigator.cpp
index 49912224b29b48b0be14da86b6df30abca185121..24d8ea515b35c4b23d7689e4a5142f2994df8d96 100644
--- a/nav2_bt_navigator/src/bt_navigator.cpp
+++ b/nav2_bt_navigator/src/bt_navigator.cpp
@@ -78,8 +78,6 @@ BtNavigator::on_configure(const rclcpp_lifecycle::State & /*state*/)
 
   // Get the libraries to pull plugins from
   plugin_lib_names_ = get_parameter("plugin_lib_names").as_string_array();
-  bool hi = declare_parameter("hi").get<bool>();
-  std::cout << hi << std::endl;
 
   // Create the class that registers our custom nodes and executes the BT
   bt_ = std::make_unique<nav2_behavior_tree::BehaviorTreeEngine>(plugin_lib_names_);