diff --git a/ArduCopter/ArduCopter.pde b/ArduCopter/ArduCopter.pde
index 391086bb79..c5a83b7339 100644
--- a/ArduCopter/ArduCopter.pde
+++ b/ArduCopter/ArduCopter.pde
@@ -777,7 +777,7 @@ static const AP_Scheduler::Task scheduler_tasks[] PROGMEM = {
     { throttle_loop,         8,     45 },
     { update_GPS,            8,     90 },
 #if OPTFLOW == ENABLED
-    { update_optflow,        8,     20 },
+    { update_optflow,       40,     20 },
 #endif
     { update_batt_compass,  40,     72 },
     { read_aux_switches,    40,      5 },