diff --git a/hardware/arduino/firmwares/wifishield/scripts/ArduinoWifiShield_upgrade_mac.sh b/hardware/arduino/firmwares/wifishield/scripts/ArduinoWifiShield_upgrade_mac.sh
old mode 100644
new mode 100755
index 5082392496e..c6278955c54
--- a/hardware/arduino/firmwares/wifishield/scripts/ArduinoWifiShield_upgrade_mac.sh
+++ b/hardware/arduino/firmwares/wifishield/scripts/ArduinoWifiShield_upgrade_mac.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-WIFI_FW_PATH="/hardware/arduino/firmwares/wifi-shield"
+WIFI_FW_PATH="/hardware/arduino/firmwares/wifishield/binary"
 AVR_TOOLS_PATH="/hardware/tools/avr/bin"
 
 progname=$0