diff --git a/artiq/devices/novatech409b/driver.py b/artiq/devices/novatech409b/driver.py
index 5db76a665..945b959a3 100644
--- a/artiq/devices/novatech409b/driver.py
+++ b/artiq/devices/novatech409b/driver.py
@@ -1,5 +1,3 @@
-#!/usr/bin/python3
-
 # Written by Joe Britton, 2015
 
 import time
diff --git a/artiq/frontend/novatech409b_controller.py b/artiq/frontend/novatech409b_controller.py
index 86b0e5f84..30dcd75f7 100755
--- a/artiq/frontend/novatech409b_controller.py
+++ b/artiq/frontend/novatech409b_controller.py
@@ -1,9 +1,8 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 # Written by Joe Britton, 2015
 
 import argparse
-import importlib
 import logging
 
 from artiq.devices.novatech409b.driver import Novatech409B
@@ -16,8 +15,7 @@ logger = logging.getLogger(__name__)
 
 def get_argparser():
     parser = argparse.ArgumentParser(
-        description="ARTIQ controller for the Novatech"
-        " 409B 4-channel DDS box")
+        description="ARTIQ controller for the Novatech 409B 4-channel DDS box")
     simple_network_args(parser, 3254)
     parser.add_argument(
         "-d", "--device", default=None,
@@ -25,6 +23,7 @@ def get_argparser():
     verbosity_args(parser)
     return parser
 
+
 def main():
     args = get_argparser().parse_args()
     init_logger(args)