diff --git a/README.md b/README.md
index 8c95a302fae55736eac431305a92f1423de350b1..8405d9998e4b0f33f4ed653741248a0b0a226ec1 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ It also provides a [default bno055 calibration file](./calibration/bno055.cal).
   - ~**debug_front_icp_last_scan** (sensor_msgs/LaserScan.msg): Debug topic to visulize front ICP matching laser scan.
   - ~**debug_front_icp_ref_scan** (sensor_msgs/LaserScan.msg): Debug topic to visulize front ICP reference laser scan.
 ### Topic subscribers
-  - ~**odom** (nav_msgs/Odometry.msg)
+  - ~**odom** (nav_msgs/Odometry.msg): Robot_odometry.
   - ~**rear_laser_scan** (sensor_msgs/LaserScan.msg): Rear laser scan input data.
   - ~**front_laser_scan** (sensor_msgs/LaserScan.msg): Front laser scan input data.
   - /**tf** (tf/tfMessage): Robot tf.