diff --git a/ArduCopter/Copter.cpp b/ArduCopter/Copter.cpp
index fd0d953dcd..a7548fbb54 100644
--- a/ArduCopter/Copter.cpp
+++ b/ArduCopter/Copter.cpp
@@ -31,8 +31,6 @@ Copter::Copter(void) :
     control_mode(STABILIZE),
 #if FRAME_CONFIG == HELI_FRAME  // helicopter constructor requires more arguments
     motors(g.rc_7, g.heli_servo_rsc, g.heli_servo_1, g.heli_servo_2, g.heli_servo_3, g.heli_servo_4, MAIN_LOOP_RATE),
-#elif FRAME_CONFIG == TRI_FRAME  // tri constructor requires additional rc_7 argument to allow tail servo reversing
-    motors(MAIN_LOOP_RATE),
 #elif FRAME_CONFIG == SINGLE_FRAME  // single constructor requires extra servos for flaps
     motors(g.single_servo_1, g.single_servo_2, g.single_servo_3, g.single_servo_4, MAIN_LOOP_RATE),
 #else