diff --git a/libraries/SITL/SIM_Helicopter.cpp b/libraries/SITL/SIM_Helicopter.cpp
index 0df8860b97..c74ded4eae 100644
--- a/libraries/SITL/SIM_Helicopter.cpp
+++ b/libraries/SITL/SIM_Helicopter.cpp
@@ -64,11 +64,7 @@ void Helicopter::update(const struct sitl_input &input)
     // get wind vector setup
     update_wind(input);
 
-    if (input.servos[7] > 1400) {
-        motor_interlock = true;
-    } else {
-        motor_interlock = false;
-    }
+    motor_interlock = input.servos[7] > 1400;
     
     float rsc = constrain_float((input.servos[7]-1000) / 1000.0f, 0, 1);
     float rsc_scale = rsc/rsc_setpoint;
diff --git a/libraries/SITL/SIM_SerialProximitySensor.cpp b/libraries/SITL/SIM_SerialProximitySensor.cpp
index 7e4b13cfc0..dadca432d7 100644
--- a/libraries/SITL/SIM_SerialProximitySensor.cpp
+++ b/libraries/SITL/SIM_SerialProximitySensor.cpp
@@ -60,7 +60,7 @@ float SerialProximitySensor::measure_distance_at_angle_bf(const Location &locati
     count++;
 
     // the 1000 here is so the files don't grow unbounded
-    const bool write_debug_files = true && count < 1000;
+    const bool write_debug_files = count < 1000;
 
     FILE *rayfile = nullptr;
     if (write_debug_files) {