diff --git a/autoware_launch/config/localization/ekf_localizer.param.yaml b/autoware_launch/config/localization/ekf_localizer.param.yaml
index 8c9b838a2f..8b24b79e71 100644
--- a/autoware_launch/config/localization/ekf_localizer.param.yaml
+++ b/autoware_launch/config/localization/ekf_localizer.param.yaml
@@ -23,7 +23,6 @@
     proc_stddev_wz_c: 5.0
 
     # for diagnostics
-    diagnostics_update_rate: 10
     pose_no_update_count_threshold_warn: 50
     pose_no_update_count_threshold_error: 250
     twist_no_update_count_threshold_warn: 50