diff --git a/Arduino/arduino.py b/Arduino/arduino.py
old mode 100644
new mode 100755
index ac5e74d..58bc020
--- a/Arduino/arduino.py
+++ b/Arduino/arduino.py
@@ -66,7 +66,7 @@ def find_port(baud, timeout):
         log.debug('Found {0}, testing...'.format(p))
         try:
             sr = serial.Serial(p, baud, timeout=timeout)
-        except serial.serialutil.SerialException as e:
+        except (serial.serialutil.SerialException, OSError) as e:
             log.debug(str(e))
             continue
         time.sleep(2)