diff --git a/ArduCopter/ArduCopter.pde b/ArduCopter/ArduCopter.pde
index ab004e16f3..318da0c05f 100644
--- a/ArduCopter/ArduCopter.pde
+++ b/ArduCopter/ArduCopter.pde
@@ -788,7 +788,7 @@ void setup()
     init_ardupilot();
 
     // initialise the main loop scheduler
-    scheduler.init(&scheduler_tasks[0], sizeof(scheduler_tasks)/sizeof(scheduler_tasks[0]));
+    scheduler.init(&scheduler_tasks[0], sizeof(scheduler_tasks)/sizeof(scheduler_tasks[0]), NULL);
 
     // setup initial performance counters
     perf_info_reset();