diff --git a/homeassistant/components/arduino.py b/homeassistant/components/arduino.py
index 767d5c491cf..6e5e7973fbf 100644
--- a/homeassistant/components/arduino.py
+++ b/homeassistant/components/arduino.py
@@ -69,7 +69,7 @@ class ArduinoBoard(object):
                                      self._board.ANALOG)
         elif mode == 'digital' and direction == 'in':
             self._board.set_pin_mode(pin,
-                                     self._board.OUTPUT,
+                                     self._board.INPUT,
                                      self._board.DIGITAL)
         elif mode == 'digital' and direction == 'out':
             self._board.set_pin_mode(pin,