diff --git a/common/tier4_state_rviz_plugin/package.xml b/common/tier4_state_rviz_plugin/package.xml
index 74f7a7418815e..b52f7d6cda1ca 100644
--- a/common/tier4_state_rviz_plugin/package.xml
+++ b/common/tier4_state_rviz_plugin/package.xml
@@ -5,6 +5,7 @@
   <version>0.0.0</version>
   <description>The autoware state rviz plugin package</description>
   <maintainer email="hiroki.ota@tier4.jp">Hiroki OTA</maintainer>
+  <maintainer email="isamu.takagi@tier4.jp">Takagi, Isamu</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>