diff --git a/launch/tier4_perception_launch/launch/object_recognition/detection/detection.launch.xml b/launch/tier4_perception_launch/launch/object_recognition/detection/detection.launch.xml
index b6188c2af94c4..44350eeaff579 100644
--- a/launch/tier4_perception_launch/launch/object_recognition/detection/detection.launch.xml
+++ b/launch/tier4_perception_launch/launch/object_recognition/detection/detection.launch.xml
@@ -36,7 +36,7 @@
 
   <!-- Camera-Lidar-Radar fusion based detection -->
   <group if="$(eval '&quot;$(var mode)&quot;==&quot;camera_lidar_radar_fusion&quot;')">
-    <!-- Camera-Lidar detectiors -->
+    <!-- Camera-Lidar detectors -->
     <include file="$(find-pkg-share tier4_perception_launch)/launch/object_recognition/detection/detector/camera_lidar_detector.launch.xml">
       <arg name="input/pointcloud" value="$(var input/pointcloud)"/>
       <arg name="image_raw0" value="$(var image_raw0)"/>
@@ -111,7 +111,7 @@
 
   <!-- Camera-Lidar fusion based detection -->
   <group if="$(eval '&quot;$(var mode)&quot;==&quot;camera_lidar_fusion&quot;')">
-    <!-- Camera-Lidar detectiors -->
+    <!-- Camera-Lidar detectors -->
     <include file="$(find-pkg-share tier4_perception_launch)/launch/object_recognition/detection/detector/camera_lidar_detector.launch.xml">
       <arg name="input/pointcloud" value="$(var input/pointcloud)"/>
       <arg name="image_raw0" value="$(var image_raw0)"/>