diff --git a/clover/launch/main_camera.launch b/clover/launch/main_camera.launch
index cf485d26..b970a5fa 100644
--- a/clover/launch/main_camera.launch
+++ b/clover/launch/main_camera.launch
@@ -19,7 +19,7 @@
     <!-- <node pkg="tf2_ros" type="static_transform_publisher" name="main_camera_frame" args="0.05 0 -0.07 -1.5707963 0 3.1415926 base_link main_camera_optical"/> -->
 
     <!-- camera node -->
-    <node pkg="nodelet" type="nodelet" name="main_camera" args="load cv_camera/CvCameraNodelet nodelet_manager" clear_params="true" unless="$(arg simulator)" respawn="true">
+    <node pkg="nodelet" type="nodelet" name="main_camera" args="load cv_camera/CvCameraNodelet nodelet_manager" launch-prefix="rosrun clover waitfile $(arg device)" clear_params="true" unless="$(arg simulator)" respawn="true">
         <param name="device_path" value="$(arg device)"/>
         <param name="frame_id" value="main_camera_optical"/>
         <param name="camera_info_url" value="file://$(find clover)/camera_info/fisheye_cam.yaml"/>