diff --git a/build/macosx/dist/tools-universal.zip b/build/macosx/dist/tools-universal.zip
index cb7668075..25c18e0c5 100644
Binary files a/build/macosx/dist/tools-universal.zip and b/build/macosx/dist/tools-universal.zip differ
diff --git a/hardware/arduino/boards.txt b/hardware/arduino/boards.txt
index bb5eaadcf..a96d823b3 100644
--- a/hardware/arduino/boards.txt
+++ b/hardware/arduino/boards.txt
@@ -3,7 +3,7 @@
 leonardo.name=Arduino Leonardo
 leonardo.upload.protocol=stk500
 leonardo.upload.maximum_size=30720
-leonardo.upload.speed=1200
+leonardo.upload.speed=300
 leonardo.bootloader.low_fuses=0xde
 leonardo.bootloader.high_fuses=0xd8
 leonardo.bootloader.extended_fuses=0xf3
diff --git a/hardware/arduino/cores/arduino/CDC.cpp b/hardware/arduino/cores/arduino/CDC.cpp
index 7da907705..b04c79be1 100644
--- a/hardware/arduino/cores/arduino/CDC.cpp
+++ b/hardware/arduino/cores/arduino/CDC.cpp
@@ -94,7 +94,7 @@ bool WEAK CDC_Setup(Setup& setup)
 		if (CDC_SET_LINE_CODING == r)
 		{
 			USB_RecvControl((void*)&_usbLineInfo,7);
-			if (1200 == _usbLineInfo.dwDTERate)		// auto-reset is triggered when avrdude opens the port at 1200 bps
+			if (300 == _usbLineInfo.dwDTERate)		// auto-reset is triggered when avrdude opens the port at 1200 bps
 				Reboot();							
 
 			return true;