diff --git a/map/autoware_lanelet2_map_validator/docs/traffic_light/missing_referrers_for_traffic_lights.md b/map/autoware_lanelet2_map_validator/docs/traffic_light/missing_referrers_for_traffic_lights.md
index 27dbd652..2346c1f7 100644
--- a/map/autoware_lanelet2_map_validator/docs/traffic_light/missing_referrers_for_traffic_lights.md
+++ b/map/autoware_lanelet2_map_validator/docs/traffic_light/missing_referrers_for_traffic_lights.md
@@ -8,8 +8,8 @@ mapping.traffic_light.missing_referrers
 
 This validator checks whether each `traffic_light` type regulatory element has been referred by at least one lanelet.
 
-| Issue Code                        | Message                                                                       | Severity | Primitive          | Description                                                                                  | Approach                                                                                   |
-| --------------------------------- | ----------------------------------------------------------------------------- | -------- | ------------------ | -------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
+| Issue Code                        | Message                                                                       | Severity | Primitive          | Description                                                                                  | Approach                                                                                      |
+| --------------------------------- | ----------------------------------------------------------------------------- | -------- | ------------------ | -------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- |
 | TrafficLight.MissingReferrers-001 | Regulatory element of traffic light must be referred by at least one lanelet. | Error    | Regulatory Element | There is a `traffic_light` type regulatory element that hasn't been referred by any lanelet. | The lanelet that might be controlled by the traffic light must refer this regulatory element. |
 
 ## Related source codes