diff --git a/src/systemcmds/tests/test_mixer.cpp b/src/systemcmds/tests/test_mixer.cpp
index 19aa059707..e9500d2d16 100644
--- a/src/systemcmds/tests/test_mixer.cpp
+++ b/src/systemcmds/tests/test_mixer.cpp
@@ -78,6 +78,7 @@ int test_mixer(int argc, char *argv[])
 	uint16_t r_page_servo_control_max[output_max];
 	uint16_t r_page_servos[output_max];
 	uint16_t servo_predicted[output_max];
+	int16_t reverse_pwm_mask = 0;
 
 	warnx("testing mixer");
 
@@ -204,8 +205,8 @@ int test_mixer(int argc, char *argv[])
 		/* mix */
 		mixed = mixer_group.mix(&outputs[0], output_max, NULL);
 
-		pwm_limit_calc(should_arm, mixed, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
-			       r_page_servos, &pwm_limit);
+		pwm_limit_calc(should_arm, mixed, reverse_pwm_mask, r_page_servo_disarmed, r_page_servo_control_min,
+			r_page_servo_control_max, outputs, r_page_servos, &pwm_limit);
 
 		//warnx("mixed %d outputs (max %d), values:", mixed, output_max);
 		for (unsigned i = 0; i < mixed; i++) {
@@ -250,7 +251,7 @@ int test_mixer(int argc, char *argv[])
 		/* mix */
 		mixed = mixer_group.mix(&outputs[0], output_max, NULL);
 
-		pwm_limit_calc(should_arm, mixed, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
+		pwm_limit_calc(should_arm, mixed, reverse_pwm_mask, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
 			       r_page_servos, &pwm_limit);
 
 		warnx("mixed %d outputs (max %d)", mixed, output_max);
@@ -277,7 +278,7 @@ int test_mixer(int argc, char *argv[])
 		/* mix */
 		mixed = mixer_group.mix(&outputs[0], output_max, NULL);
 
-		pwm_limit_calc(should_arm, mixed, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
+		pwm_limit_calc(should_arm, mixed, reverse_pwm_mask, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
 			       r_page_servos, &pwm_limit);
 
 		//warnx("mixed %d outputs (max %d), values:", mixed, output_max);
@@ -313,7 +314,7 @@ int test_mixer(int argc, char *argv[])
 		/* mix */
 		mixed = mixer_group.mix(&outputs[0], output_max, NULL);
 
-		pwm_limit_calc(should_arm, mixed, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
+		pwm_limit_calc(should_arm, mixed, reverse_pwm_mask, r_page_servo_disarmed, r_page_servo_control_min, r_page_servo_control_max, outputs,
 			       r_page_servos, &pwm_limit);
 
 		//warnx("mixed %d outputs (max %d), values:", mixed, output_max);