diff --git a/localization/ekf_localizer/package.xml b/localization/ekf_localizer/package.xml
index 8f951eaf0fd86..0e6650016279c 100644
--- a/localization/ekf_localizer/package.xml
+++ b/localization/ekf_localizer/package.xml
@@ -5,6 +5,7 @@
   <version>0.1.0</version>
   <description>The ekf_localizer package</description>
   <maintainer email="takamasa.horibe@tier4.jp">Takamasa Horibe</maintainer>
+  <maintainer email="koji.minoda@tier4.jp">Koji Minoda</maintainer>
   <maintainer email="yamato.ando@tier4.jp">Yamato Ando</maintainer>
   <license>Apache License 2.0</license>
   <author email="takamasa.horibe@tier4.jp">Takamasa Horibe</author>