diff --git a/README.md b/README.md
index c566189d3934e25637d7604f33cc602e3aae990b..7e0da32676982302cdb2ba4f97739a592dbe4c2f 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,6 @@ roslaunch seat_car_gazebo sim.launch
 rosservice call /semaphore_start1_color_plugin/trigger
 
 # Test car movement
-rostopic pub /steering std_msgs/Int16 "data: 75"
-rostopic pub /manual_control/speed    std_msgs/Int16 "data: -750"
+rostopic pub /steering std_msgs/UInt8 "data: 75"
+rostopic pub /manual_control/speed    std_msgs/Int16 "data: 250"
 ```
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