diff --git a/lib/dev_server_wrapper.py b/lib/dev_server_wrapper.py
index 4ccf528..d118d1e 100644
--- a/lib/dev_server_wrapper.py
+++ b/lib/dev_server_wrapper.py
@@ -61,7 +61,7 @@
   def run(self):
     # Kill previous running instance of devserver if it exists.
     self.Stop()
-    cmd = ['start_devserver', '--archive_dir=./static', '--production']
+    cmd = ['start_devserver', '--archive_dir=./static']
     cros_build_lib.SudoRunCommand(cmd, enter_chroot=True, print_cmd=False,
                                   log_stdout_to_file=self._log_filename,
                                   combine_stdout_stderr=True,