diff --git a/gz_ros2_control_demos/config/cart_controller_velocity.yaml b/gz_ros2_control_demos/config/cart_controller_velocity.yaml
index bc3f51cd..f215830f 100644
--- a/gz_ros2_control_demos/config/cart_controller_velocity.yaml
+++ b/gz_ros2_control_demos/config/cart_controller_velocity.yaml
@@ -7,6 +7,7 @@ controller_manager:
 
 velocity_controller:
   ros__parameters:
+    type: velocity_controllers/JointGroupVelocityController
     joints:
       - slider_to_cart