diff --git a/autoware_launch/config/localization/ndt_scan_matcher.param.yaml b/autoware_launch/config/localization/ndt_scan_matcher.param.yaml
index 0118328e2e..c8afa9ea1a 100644
--- a/autoware_launch/config/localization/ndt_scan_matcher.param.yaml
+++ b/autoware_launch/config/localization/ndt_scan_matcher.param.yaml
@@ -67,7 +67,7 @@
     # Regularization switch
     regularization_enabled: false
 
-    # Regularization scale factor
+    # regularization scale factor
     regularization_scale_factor: 0.01
 
     # Dynamic map loading distance
@@ -79,6 +79,7 @@
     # Radius of input LiDAR range (used for diagnostics of dynamic map loading)
     lidar_radius: 100.0
 
+    # cspell: ignore degrounded
     # A flag for using scan matching score based on de-grounded LiDAR scan
     estimate_scores_for_degrounded_scan: false