diff --git a/ArduSub/radio.cpp b/ArduSub/radio.cpp
index e0d478fcd7..9eb6a46e3c 100644
--- a/ArduSub/radio.cpp
+++ b/ArduSub/radio.cpp
@@ -238,7 +238,7 @@ void Sub::set_throttle_zero_flag(int16_t throttle_control)
     // if not using throttle interlock and non-zero throttle and not E-stopped,
     // or using motor interlock and it's enabled, then motors are running, 
     // and we are flying. Immediately set as non-zero
-    if ((!ap.using_interlock && (throttle_control < 475 || throttle_control > 525)&& && !ap.motor_emergency_stop) || (ap.using_interlock && motors.get_interlock())) {
+    if ((!ap.using_interlock && (throttle_control < 475 || throttle_control > 525) &&  !ap.motor_emergency_stop) || (ap.using_interlock && motors.get_interlock())) {
         last_nonzero_throttle_ms = tnow_ms;
         ap.throttle_zero = false;
     } else if (tnow_ms - last_nonzero_throttle_ms > THROTTLE_ZERO_DEBOUNCE_TIME_MS) {