diff --git a/autoware_launch/config/system/system_monitor/net_monitor.param.yaml b/autoware_launch/config/system/system_monitor/net_monitor.param.yaml
index d72b8d1334..5d5c1bd7bd 100644
--- a/autoware_launch/config/system/system_monitor/net_monitor.param.yaml
+++ b/autoware_launch/config/system/system_monitor/net_monitor.param.yaml
@@ -1,7 +1,6 @@
 /**:
   ros__parameters:
       devices: ["*"]
-      traffic_reader_port: 7636
       monitor_program: "greengrass"
       crc_error_check_duration: 1
       crc_error_count_threshold: 1