diff --git a/python/davis_etl.py b/python/davis_etl.py
index dd7b7ce..224b4c7 100755
--- a/python/davis_etl.py
+++ b/python/davis_etl.py
@@ -91,6 +91,7 @@ _DEBUG_FILE = _LOG_DIR + _LOG_FILE_ROOT + u'.dbg'
 # finite loop implementation, tout for 43200 cycles
 tout = 0
 
+_SERIAL_CONSOLE = '/dev/ttyUSBdavis'
 _ABS_ZERO = 273.15
 _HEIGHT = 455
 temp = {}
@@ -368,7 +369,7 @@ if '__main__':
     davis_decoder = davisDecoder()
     davis_writer = DBwriter()
     try:
-        with serial.Serial('/dev/ttyUSBdavis', 9600) as davis:
+        with serial.Serial(_SERIAL_CONSOLE, 9600) as davis:
             # Now, let it run a couple times, end and restart via systemd
             while tout < 400:
                 line = davis.readline()