diff --git a/libraries/SITL/SIM_Frame.cpp b/libraries/SITL/SIM_Frame.cpp
index 32bc4a7992..eeb1550c7c 100644
--- a/libraries/SITL/SIM_Frame.cpp
+++ b/libraries/SITL/SIM_Frame.cpp
@@ -236,7 +236,7 @@ static Motor deca_cw_x_motors[] =
 static Motor tri_motors[] =
 {
     Motor(AP_MOTORS_MOT_1,   60, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 1),
-    Motor(AP_MOTORS_MOT_2,  -60, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 3),
+    Motor(AP_MOTORS_MOT_2,  -60, AP_MOTORS_MATRIX_YAW_FACTOR_CW, 3),
     Motor(AP_MOTORS_MOT_4,  180, AP_MOTORS_MATRIX_YAW_FACTOR_CCW, 2, AP_MOTORS_MOT_7, 60, -60, -1, 0, 0),
 };