diff --git a/flash.py b/flash.py
index 69c3fdb88..718fea7b8 100644
--- a/flash.py
+++ b/flash.py
@@ -85,7 +85,7 @@ def build():
 
     os.system('%(size)s *.hex *.elf *.o' % {'size':AVRSIZEAPP})
 
-    os.system('%(dude)s -c %(programmer)s -b %(bps)s -P %(port)s -p %(device)s -C %(dudeconf)s -D -Uflash:w:%(product)s.hex:i' % {'dude':AVRDUDEAPP, 'programmer':PROGRAMMER, 'bps':BITRATE, 'port':SERIAL_PORT, 'device':DEVICE, 'dudeconf':AVRDUDECONFIG, 'product':BUILDNAME})
+    os.system('%(dude)s -c %(programmer)s -b %(bps)s -P %(port)s -p %(device)s -C %(dudeconf)s -Uflash:w:%(product)s.hex:i' % {'dude':AVRDUDEAPP, 'programmer':PROGRAMMER, 'bps':BITRATE, 'port':SERIAL_PORT, 'device':DEVICE, 'dudeconf':AVRDUDECONFIG, 'product':BUILDNAME})
     # os.system('%(dude)s -c %(programmer)s -b %(bps)s -P %(port)s -p %(device)s -C %(dudeconf)s -B 10 -F -U flash:w:%(product)s.hex:i' % {'dude':AVRDUDEAPP, 'programmer':PROGRAMMER, 'bps':BITRATE, 'port':SERIAL_PORT, 'device':DEVICE, 'dudeconf':AVRDUDECONFIG, 'product':BUILDNAME})
 
 
diff --git a/sense_control.h b/sense_control.h
index 7d27f7ed2..a86dfad15 100644
--- a/sense_control.h
+++ b/sense_control.h
@@ -24,7 +24,7 @@
 void sense_init();
 #define SENSE_POWER_OFF !((SENSE_PIN >> POWER_BIT) & 1)
 #define SENSE_CHILLER_OFF !((SENSE_PIN >> CHILLER_BIT) & 1)
-#define SENSE_DOOR_OPEN ((SENSE_PIN >> DOOR_BIT) & 1)
+#define SENSE_DOOR_OPEN !((SENSE_PIN >> DOOR_BIT) & 1)
 #define SENSE_X1_LIMIT !((LIMIT_PIN >> X1_LIMIT_BIT) & 1)
 #define SENSE_X2_LIMIT !((LIMIT_PIN >> X2_LIMIT_BIT) & 1)
 #define SENSE_Y1_LIMIT !((LIMIT_PIN >> Y1_LIMIT_BIT) & 1)