diff --git a/perception/simple_object_merger/src/simple_object_merger_node.cpp b/perception/simple_object_merger/src/simple_object_merger_node.cpp
index 30ae7705770dd..98c7fd03c1e99 100644
--- a/perception/simple_object_merger/src/simple_object_merger_node.cpp
+++ b/perception/simple_object_merger/src/simple_object_merger_node.cpp
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "autoware_simple_object_merger/simple_object_merger_node.hpp"
+#include "simple_object_merger_node.hpp"
 
 #include <geometry_msgs/msg/pose_stamped.hpp>
 
diff --git a/perception/simple_object_merger/include/autoware_simple_object_merger/simple_object_merger_node.hpp b/perception/simple_object_merger/src/simple_object_merger_node.hpp
similarity index 91%
rename from perception/simple_object_merger/include/autoware_simple_object_merger/simple_object_merger_node.hpp
rename to perception/simple_object_merger/src/simple_object_merger_node.hpp
index b56b91fe37337..d5f907ff09ef2 100644
--- a/perception/simple_object_merger/include/autoware_simple_object_merger/simple_object_merger_node.hpp
+++ b/perception/simple_object_merger/src/simple_object_merger_node.hpp
@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef AUTOWARE_SIMPLE_OBJECT_MERGER__SIMPLE_OBJECT_MERGER_NODE_HPP_
-#define AUTOWARE_SIMPLE_OBJECT_MERGER__SIMPLE_OBJECT_MERGER_NODE_HPP_
+#ifndef SIMPLE_OBJECT_MERGER_NODE_HPP_
+#define SIMPLE_OBJECT_MERGER_NODE_HPP_
 
 #include "autoware/universe_utils/ros/transform_listener.hpp"
 #include "rclcpp/rclcpp.hpp"
@@ -78,4 +78,4 @@ class SimpleObjectMergerNode : public rclcpp::Node
 
 }  // namespace autoware::simple_object_merger
 
-#endif  // AUTOWARE_SIMPLE_OBJECT_MERGER__SIMPLE_OBJECT_MERGER_NODE_HPP_
+#endif  // SIMPLE_OBJECT_MERGER_NODE_HPP_