diff --git a/ps2_usb/Makefile b/ps2_usb/Makefile
old mode 100644
new mode 100755
index af73be2c9..7b55e0201
--- a/ps2_usb/Makefile
+++ b/ps2_usb/Makefile
@@ -43,7 +43,7 @@ USB_NKRO_ENABLE = yes	# USB Nkey Rollover
 
 
 #---------------- Programming Options --------------------------
-PROGRAM_CMD = teensy_loader_cli.exe -mmcu=$(MCU) -w -v $(TARGET).hex
+PROGRAM_CMD = teensy_loader_cli -mmcu=$(MCU) -w -v $(TARGET).hex
 
 
 
diff --git a/ps2_usb/README b/ps2_usb/README
index a0ff286c7..f4f344c06 100644
--- a/ps2_usb/README
+++ b/ps2_usb/README
@@ -81,8 +81,8 @@ USB            GND  |   |   ATmega168   |
 ===                 C3  |               |
 5V <-------+--------+---|Vcc,AVCC       |        PS/2
            R1           |               |        ====
-D- <----+--+-----R2-----|INT0        RXD|------->DATA
-D+ <----|---+----R3-----|INT1        XCK|------->CLOCK
+D- <----+--+-----R2-----|INT1        RXD|------->DATA
+D+ <----|---+----R3-----|INT0        XCK|------->CLOCK
         Z1  Z2          |               |      ->5V
 GND<----+---+--+--+-----|GND            |      ->GND
                |  |     |               |