diff --git a/src/automatic.cpp b/src/automatic.cpp
index 2b7b863..0cdb8fe 100644
--- a/src/automatic.cpp
+++ b/src/automatic.cpp
@@ -35,6 +35,7 @@ int main(int argc,char** argv){
 	ros::NodeHandle nh;
 	ros::Publisher cmdPublisher = nh.advertise<geometry_msgs::Twist>("cmd_vel",1);
 	ros::Subscriber scanListener = nh.subscribe("scan",10,scanCallback);
+        ros::Subscriber batteryListener = nh.subscribe("battery_state",10,batteryCallback);
         ros::Rate loopRate(30);
         int runtime;
         int starttime=time(NULL);