diff --git a/control/external_cmd_selector/src/external_cmd_selector/external_cmd_selector_node.cpp b/control/external_cmd_selector/src/external_cmd_selector/external_cmd_selector_node.cpp
index 69e41f11e628e..a93f1b4dc6559 100644
--- a/control/external_cmd_selector/src/external_cmd_selector/external_cmd_selector_node.cpp
+++ b/control/external_cmd_selector/src/external_cmd_selector/external_cmd_selector_node.cpp
@@ -103,7 +103,8 @@ ExternalCmdSelector::ExternalCmdSelector(const rclcpp::NodeOptions & node_option
   // Timer
   const auto period_ns = rclcpp::Rate(update_rate).period();
   timer_ = rclcpp::create_timer(
-    this, get_clock(), period_ns, std::bind(&ExternalCmdSelector::onTimer, this));
+    this, get_clock(), period_ns, std::bind(&ExternalCmdSelector::onTimer, this),
+    callback_group_subscribers_);
 }
 
 void ExternalCmdSelector::onLocalControlCmd(const ExternalControlCommand::ConstSharedPtr msg)
diff --git a/system/ad_service_state_monitor/src/ad_service_state_monitor_node/ad_service_state_monitor_node.cpp b/system/ad_service_state_monitor/src/ad_service_state_monitor_node/ad_service_state_monitor_node.cpp
index 3fd02bfa8a682..cbfb469a72fa2 100644
--- a/system/ad_service_state_monitor/src/ad_service_state_monitor_node/ad_service_state_monitor_node.cpp
+++ b/system/ad_service_state_monitor/src/ad_service_state_monitor_node/ad_service_state_monitor_node.cpp
@@ -462,5 +462,6 @@ AutowareStateMonitorNode::AutowareStateMonitorNode()
   // Timer
   const auto period_ns = rclcpp::Rate(update_rate_).period();
   timer_ = rclcpp::create_timer(
-    this, get_clock(), period_ns, std::bind(&AutowareStateMonitorNode::onTimer, this));
+    this, get_clock(), period_ns, std::bind(&AutowareStateMonitorNode::onTimer, this),
+    callback_group_subscribers_);
 }