diff --git a/APMrover2/APMrover2.cpp b/APMrover2/APMrover2.cpp
index 2f39253f91..548d9cc652 100644
--- a/APMrover2/APMrover2.cpp
+++ b/APMrover2/APMrover2.cpp
@@ -105,7 +105,7 @@ void Rover::setup()
     init_ardupilot();
 
     // initialise the main loop scheduler
-    scheduler.init(&scheduler_tasks[0], sizeof(scheduler_tasks)/sizeof(scheduler_tasks[0]), this);
+    scheduler.init(&scheduler_tasks[0], sizeof(scheduler_tasks)/sizeof(scheduler_tasks[0]));
 }
 
 /*