diff --git a/targets/arduino-mega2560.json b/targets/arduino-mega2560.json
index 792ede40..b1e550da 100644
--- a/targets/arduino-mega2560.json
+++ b/targets/arduino-mega2560.json
@@ -4,5 +4,5 @@
     "ldflags": [
         "-Wl,--defsym=_bootloader_size=8192"
     ],
-    "flash-command":"avrdude -c wiring -b 115200 -p atmega2560 -P {port} -U flash:w:{hex} -v -D"
+    "flash-command":"avrdude -c wiring -b 115200 -p atmega2560 -P {port} -U flash:w:{hex}:i -v -D"
 }